[15:26:21] [main/INFO]: Environment: authHost='https://authserver.mojang.com', accountsHost='https://api.mojang.com', sessionHost='https://sessionserver.mojang.com', servicesHost='https://api.minecraftservices.com', name='PROD' [15:26:21] [main/INFO]: Reloading ResourceManager: Default, bukkit [15:26:22] [Worker-Main-2/INFO]: Loaded 7 recipes [15:26:24] [Server thread/INFO]: Starting minecraft server version 1.16.5 [15:26:24] [Server thread/INFO]: Loading properties [15:26:24] [Server thread/INFO]: This server is running Paper version git-Paper-794 (MC: 1.16.5) (Implementing API version 1.16.5-R0.1-SNAPSHOT) [15:26:24] [Server thread/INFO]: Debug logging is disabled [15:26:24] [Server thread/INFO]: Server Ping Player Sample Count: 12 [15:26:24] [Server thread/INFO]: Using 4 threads for Netty based IO [15:26:24] [Server thread/INFO]: Default game type: SURVIVAL [15:26:24] [Server thread/INFO]: Generating keypair [15:26:24] [Server thread/INFO]: Starting Minecraft server on 0.0.0.0:15019 [15:26:24] [Server thread/INFO]: Using epoll channel type [15:26:25] [Server thread/WARN]: Initializing Legacy Material Support. Unless you have legacy plugins and/or data this is a bug! [15:26:30] [Server thread/WARN]: Legacy plugin XItemsRemover v1.1.5 does not specify an api-version. [15:26:30] [Server thread/WARN]: Legacy plugin UniversalCode v1.0 does not specify an api-version. [15:26:30] [Server thread/ERROR]: Could not load 'plugins/Pl-Hide-Pro-2.11.3.jar' in folder 'plugins' org.bukkit.plugin.InvalidPluginException: java.lang.UnsupportedClassVersionError: eu/nononitas/plhidepro/spigot/SpigotPlugin has been compiled by a more recent version of the Java Runtime (class file version 61.0), this version of the Java Runtime only recognizes class file versions up to 60.0 at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:157) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.SimplePluginManager.loadPlugin(SimplePluginManager.java:414) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.SimplePluginManager.loadPlugins(SimplePluginManager.java:322) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.loadPlugins(CraftServer.java:393) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.DedicatedServer.init(DedicatedServer.java:269) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.w(MinecraftServer.java:1074) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.lambda$a$0(MinecraftServer.java:291) ~[patched_1.16.5.jar:git-Paper-794] at java.lang.Thread.run(Thread.java:831) [?:?] Caused by: java.lang.UnsupportedClassVersionError: eu/nononitas/plhidepro/spigot/SpigotPlugin has been compiled by a more recent version of the Java Runtime (class file version 61.0), this version of the Java Runtime only recognizes class file versions up to 60.0 at java.lang.ClassLoader.defineClass1(Native Method) ~[?:?] at java.lang.ClassLoader.defineClass(ClassLoader.java:1010) ~[?:?] at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:150) ~[?:?] at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:201) ~[patched_1.16.5.jar:git-Paper-794] at java.lang.ClassLoader.loadClass(ClassLoader.java:586) ~[?:?] at org.bukkit.plugin.java.PluginClassLoader.loadClass0(PluginClassLoader.java:119) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.java.PluginClassLoader.loadClass(PluginClassLoader.java:114) ~[patched_1.16.5.jar:git-Paper-794] at java.lang.ClassLoader.loadClass(ClassLoader.java:519) ~[?:?] at java.lang.Class.forName0(Native Method) ~[?:?] at java.lang.Class.forName(Class.java:466) ~[?:?] at org.bukkit.plugin.java.PluginClassLoader.(PluginClassLoader.java:82) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:153) ~[patched_1.16.5.jar:git-Paper-794] ... 7 more [15:26:30] [Server thread/INFO]: [PlayerPoints] Loading 2 libraries... please wait [15:26:30] [Server thread/INFO]: [PlayerPoints] Loaded library /home/********/libraries/com/mysql/mysql-connector-j/9.1.0/mysql-connector-j-9.1.0.jar [15:26:30] [Server thread/INFO]: [PlayerPoints] Loaded library /home/********/libraries/com/google/protobuf/protobuf-java/4.26.1/protobuf-java-4.26.1.jar [15:26:30] [Server thread/INFO]: [PlayerPoints] Loaded library /home/********/libraries/org/xerial/sqlite-jdbc/**.**.**.**/sqlite-jdbc-3.46.0.0.jar [15:26:30] [Server thread/INFO]: [PlayerPoints] Loaded library /home/********/libraries/org/slf4j/slf4j-api/1.7.36/slf4j-api-1.7.36.jar [15:26:30] [Server thread/INFO]: [PvPManager] Loading 2 libraries... please wait [15:26:30] [Server thread/INFO]: [PvPManager] Loaded library /home/********/libraries/com/zaxxer/HikariCP/4.0.3/HikariCP-4.0.3.jar [15:26:30] [Server thread/INFO]: [PvPManager] Loaded library /home/********/libraries/org/slf4j/slf4j-api/2.0.13/slf4j-api-2.0.13.jar [15:26:31] [Server thread/INFO]: [LuckPerms] Loading LuckPerms v5.4.151 [15:26:31] [Server thread/INFO]: [ItemsCooldown] Loading ItemsCooldown v1.3.1 [15:26:31] [Server thread/INFO]: [PlaceholderAPI] Loading PlaceholderAPI v2.11.6 [15:26:31] [Server thread/INFO]: [CMILib] Loading CMILib v1.4.5.0 [15:26:31] [Server thread/INFO]: [Revises] Loading Revises v1.2 [15:26:31] [Server thread/INFO]: [HexAutoBC] Loading HexAutoBC v1.0 [15:26:31] [Server thread/INFO]: [HolographicDisplays] Loading HolographicDisplays v3.0.4 [15:26:31] [Server thread/INFO]: [ProtocolLib] Loading ProtocolLib v5.3.0 [15:26:31] [Server thread/INFO]: [XItemsRemover] Loading XItemsRemover v1.1.5 [15:26:31] [Server thread/INFO]: [Vulcan] Loading Vulcan v2.6.5 [15:26:32] [Server thread/INFO]: [Blue Slime Core] Loading BlueSlimeCore v2.9.6.431 [15:26:32] [Server thread/INFO]: [PlayerReport] Loading PlayerReport v3.4.3 [15:26:32] [Server thread/INFO]: [UniversalCode] Loading UniversalCode v1.0 [15:26:32] [Server thread/INFO]: [packetevents] Loading packetevents v2.7.0 [15:26:36] [Server thread/INFO]: [CommandCooldown] Loading CommandCooldown v2.3.5 [15:26:36] [Server thread/INFO]: [UVElytra] Loading UVElytra v1.0 [15:26:36] [Server thread/INFO]: [UVPotionStack] Loading UVPotionStack v1.0 [15:26:36] [Server thread/INFO]: [Vault] Loading Vault v1.7.3-b131 [15:26:36] [Server thread/INFO]: [MyCommand] Loading MyCommand v5.7.4 [15:26:36] [Server thread/INFO]: [CratesPlus] Loading CratesPlus v4.5.3 [15:26:36] [Server thread/INFO]: [WorldEdit] Loading WorldEdit v7.2.15+6463-5ca4dff [15:26:36] [Server thread/INFO]: Got request to register class com.sk89q.worldedit.bukkit.BukkitServerInterface with WorldEdit [com.sk89q.worldedit.extension.platform.PlatformManager@60b7d733] [15:26:36] [Server thread/INFO]: [DecentHolograms] Loading DecentHolograms v2.8.12 [15:26:36] [Server thread/INFO]: [AutoMine] Loading AutoMine v0.1.9 [15:26:36] [Server thread/INFO]: [LiteBans] Loading LiteBans v2.6.9 [15:26:37] [Server thread/INFO]: [PlayerPoints] Loading PlayerPoints v3.3.0 [15:26:37] [Server thread/INFO]: [PlayerPoints] Initializing using RoseGarden v1.4.6 [15:26:37] [Server thread/INFO]: [WorldGuard] Loading WorldGuard v7.0.4+f7ff984 [15:26:37] [Server thread/INFO]: [Multiverse-Core] Loading Multiverse-Core v4.3.1-b861 [15:26:37] [Server thread/INFO]: [BAirDrop] Loading BAirDrop v1.0.9 [15:26:37] [Server thread/INFO]: [SCore] Loading SCore v5.24.12.29 [15:26:37] [Server thread/INFO]: [DeluxeMenus] Loading DeluxeMenus v1.14.0-Release [15:26:37] [Server thread/INFO]: [DeluxeMenus] NMS hook has been setup successfully! [15:26:37] [Server thread/INFO]: [TradePlus] Loading TradePlus v3.83 [15:26:37] [Server thread/INFO]:  Downloaded from https://directleaks.to  [15:26:37] [Server thread/INFO]: [TAB] Loading TAB v5.0.3 [15:26:37] [Server thread/INFO]: [ChatEx] Loading ChatEx v3.2.2 [15:26:37] [Server thread/INFO]: [BLib] Loading BLib v1.0.9 [15:26:37] [Server thread/INFO]: [BLib] set api [15:26:37] [Server thread/INFO]: [PvPManager] Loading PvPManager v3.18.36 [15:26:37] [Server thread/INFO]: [VioTrap] Loading VioTrap v1.6 [15:26:37] [Server thread/INFO]: [ACubelets] Loading ACubelets v2.0.2 [15:26:37] [Server thread/INFO]: [ExecutableItems] Loading ExecutableItems v7.25.1.5 [15:26:37] [Server thread/INFO]: [CMI] Loading CMI v9.6.9.9 [15:26:37] [Server thread/INFO]: [PlugManX] Loading PlugManX v2.4.1 [15:26:37] [Server thread/INFO]: Server permissions file permissions.yml is empty, ignoring it [15:26:37] [Server thread/INFO]: [LuckPerms] Enabling LuckPerms v5.4.151 [15:26:37] [LiteBans-0/WARN]: [LiteBans] Loaded class kotlin.internal.jdk8.JDK8PlatformImplementations from Revises v1.2 which is not a depend, softdepend or loadbefore of this plugin. [15:26:38] [Server thread/INFO]: __ [15:26:38] [Server thread/INFO]: | |__) LuckPerms v5.4.151 [15:26:38] [Server thread/INFO]: |___ | Running on Bukkit - Paper [15:26:38] [Server thread/INFO]: [15:26:38] [Server thread/INFO]: [LuckPerms] Loading configuration... [15:26:38] [Server thread/INFO]: [LuckPerms] Loading storage provider... [H2] [15:26:39] [Server thread/INFO]: [LuckPerms] Loading internal permission managers... [15:26:39] [Server thread/INFO]: [LuckPerms] Performing initial data load... [15:26:39] [Server thread/INFO]: [LuckPerms] Successfully enabled. (took 2152ms) [15:26:39] [Server thread/INFO]: [ProtocolLib] Enabling ProtocolLib v5.3.0 [15:26:39] [Server thread/INFO]: [Blue Slime Core] Enabling BlueSlimeCore v2.9.6.431 [15:26:39] [Server thread/INFO]: [Blue Slime Core] Successfully loaded 2 language(s). [15:26:39] [Server thread/INFO]: [Blue Slime Core] Detected server as regular SpigotMC/PaperMC (not Folia) [15:26:39] [Server thread/INFO]: [Vault] Enabling Vault v1.7.3-b131 [15:26:39] [Server thread/INFO]: [Vault] [Permission] SuperPermissions loaded as backup permission system. [15:26:40] [Server thread/INFO]: [Vault] Enabled Version 1.7.3-b131 [15:26:40] [Server thread/INFO]: [LuckPerms] Registered Vault permission & chat hook. [15:26:40] [Server thread/INFO]: [WorldEdit] Enabling WorldEdit v7.2.15+6463-5ca4dff [15:26:40] [Server thread/INFO]: Registering commands with com.sk89q.worldedit.bukkit.BukkitServerInterface [15:26:40] [Server thread/INFO]: WEPIF: Vault detected! Using Vault for permissions [15:26:40] [Server thread/INFO]: Using com.sk89q.worldedit.bukkit.adapter.impl.Spigot_v1_16_R3 as the Bukkit adapter [15:26:41] [Server thread/INFO]: [PlayerPoints] Enabling PlayerPoints v3.3.0 [15:26:42] [Server thread/INFO]: [PlayerPoints] Data handler connected using SQLite. [15:26:42] [Server thread/INFO]: [PlugManX] Enabling PlugManX v2.4.1 [15:26:42] [Server thread/WARN]: **** SERVER IS RUNNING IN OFFLINE/INSECURE MODE! [15:26:42] [Server thread/WARN]: The server will make no attempt to authenticate usernames. Beware. [15:26:42] [Server thread/WARN]: While this makes the game possible to play without internet access, it also opens up the ability for hackers to connect with any username they choose. [15:26:42] [Server thread/WARN]: To change this, set "online-mode" to "true" in the server.properties file. [15:26:42] [Server thread/INFO]: Preparing level "world" [15:26:43] [Server thread/INFO]: Preparing start region for dimension minecraft:overworld [15:26:43] [Server thread/INFO]: Preparing spawn area: 0% [15:26:43] [Server thread/INFO]: Preparing spawn area: 0% [15:26:43] [Server thread/INFO]: Time elapsed: 581 ms [15:26:43] [Server thread/INFO]: Preparing start region for dimension minecraft:the_nether [15:26:44] [Server thread/INFO]: Preparing spawn area: 0% [15:26:44] [Server thread/INFO]: Preparing spawn area: 0% [15:26:44] [Server thread/INFO]: Preparing spawn area: 0% [15:26:45] [Worker-Main-2/INFO]: Preparing spawn area: 100% [15:26:45] [Server thread/INFO]: Time elapsed: 1936 ms [15:26:45] [Server thread/INFO]: Preparing start region for dimension minecraft:the_end [15:26:45] [Server thread/INFO]: Preparing spawn area: 0% [15:26:46] [Worker-Main-2/INFO]: Preparing spawn area: 100% [15:26:46] [Server thread/INFO]: Time elapsed: 640 ms [15:26:46] [Server thread/INFO]: [ItemsCooldown] Enabling ItemsCooldown v1.3.1 [15:26:46] [Server thread/INFO]: | -------------------------------- | [15:26:46] [Server thread/INFO]: ItemsCooldown 1.3.1 [15:26:46] [Server thread/INFO]: Dev. Destroy | ENABLED [15:26:46] [Server thread/INFO]: | -------------------------------- | [15:26:46] [Server thread/INFO]: [PlaceholderAPI] Enabling PlaceholderAPI v2.11.6 [15:26:46] [Server thread/INFO]: [PlaceholderAPI] Fetching available expansion information... [15:26:46] [Server thread/INFO]: [CMILib] Enabling CMILib v1.4.5.0 [15:26:47] [Server thread/INFO]: Server version: v1_16_R3 - 1.16.5 - paper git-Paper-794 (MC: 1.16.5) [15:26:48] [Server thread/INFO]: CMI hooked. [15:26:48] [Server thread/INFO]: [PlaceholderAPI] Successfully registered internal expansion: cmil [**.**.**.**] [15:26:48] [Server thread/INFO]: PlaceholderAPI hooked. [15:26:48] [Server thread/INFO]: Updated (EN) language file. Took 44ms [15:26:48] [Server thread/INFO]: Updated (RU) language file. Took 45ms [15:26:48] [Server thread/INFO]: [Revises] Enabling Revises v1.2 [15:26:48] [Server thread/INFO]: [Revises] Loading sqLite database strategy [15:26:48] [Server thread/INFO]: [HexAutoBC] Enabling HexAutoBC v1.0 [15:26:48] [Server thread/ERROR]: Error occurred while enabling HexAutoBC v1.0 (Is it up to date?) java.lang.RuntimeException: [>] Использование данного плагина временно не доступно! at dev.xentany.hexautobc.HexAutoBC.onEnable(HexAutoBC.java:35) ~[?:?] at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:263) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:370) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:500) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugin(CraftServer.java:518) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugins(CraftServer.java:432) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.loadWorld(MinecraftServer.java:599) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.DedicatedServer.init(DedicatedServer.java:298) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.w(MinecraftServer.java:1074) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.lambda$a$0(MinecraftServer.java:291) ~[patched_1.16.5.jar:git-Paper-794] at java.lang.Thread.run(Thread.java:831) [?:?] [15:26:48] [Server thread/INFO]: [HexAutoBC] Disabling HexAutoBC v1.0 [15:26:48] [Server thread/INFO]: [HolographicDisplays] Enabling HolographicDisplays v3.0.4 [15:26:49] [Server thread/INFO]: [XItemsRemover] Enabling XItemsRemover v1.1.5* [15:26:49] [Server thread/INFO]: [Vulcan] Enabling Vulcan v2.6.5 [15:26:49] [Server thread/INFO]: [Vulcan] Leaked by GOLDSLIV: https://vk.com/goldslivnew [15:26:49] [Server thread/INFO]: [Vulcan] Server Version: 1.16.5 detected! [15:26:49] [Server thread/INFO]: [Vulcan] BStats enabled! [15:26:49] [Server thread/INFO]: [PlaceholderAPI] Successfully registered internal expansion: Vulcan [2.6.5] [15:26:49] [Server thread/INFO]: [Vulcan] PlaceholderAPI found. Enabling hook! [15:26:49] [Server thread/INFO]: [PlayerReport] Enabling PlayerReport v3.4.3 [15:26:49] [Server thread/INFO]: [UniversalCode] Enabling UniversalCode v1.0* [15:26:49] [Server thread/INFO]: [UniversalCode/INFO] Промокод open успешно загружен! [15:26:49] [Server thread/INFO]: [UniversalCode] The plugin started successfully! Website: u-studio.su [15:26:49] [Server thread/INFO]: [packetevents] Enabling packetevents v2.7.0 [15:26:49] [packetevents-update-check-thread/INFO]: [packetevents] Checking for updates, please wait... [15:26:49] [Server thread/INFO]: [CommandCooldown] Enabling CommandCooldown v2.3.5 [15:26:49] [Server thread/INFO]: [CommandCooldown] Update available! Download at https://www.spigotmc.org/resources/73696 [15:26:49] [Server thread/INFO]: [UVElytra] Enabling UVElytra v1.0 [15:26:49] [Server thread/INFO]: [UVElytra] UVElytra is enabled [15:26:49] [Server thread/INFO]: [UVPotionStack] Enabling UVPotionStack v1.0 [15:26:49] [Server thread/INFO]: [UVPotionStack] UVPotionStack by uranvex [ON] [15:26:49] [Server thread/INFO]: [UVPotionStack] POTION | 8 [15:26:49] [Server thread/INFO]: [MyCommand] Enabling MyCommand v5.7.4 [15:26:49] [Server thread/INFO]: *-=-=-=-=-=-=-=-=-* MyCommand v.5.7.4*-=-=-=-=-=-=-=-=-=-* [15:26:49] [Server thread/INFO]: | Hooked on Vault 1.7.3-b131 [15:26:49] [Server thread/INFO]: | Command file(s) found : 1 [15:26:49] [Server thread/INFO]: | Config : Ready. [15:26:49] [Server thread/INFO]: | ProtocolLib found, features availables (SignMenu) [15:26:49] [Server thread/INFO]: [PlaceholderAPI] Successfully registered internal expansion: mycommand [1.0.0] [15:26:49] [Server thread/INFO]: | Placeholder_API : Hooked, Ok. [15:26:49] [Server thread/INFO]: | Custom commands loaded : 44 [15:26:50] [packetevents-update-check-thread/INFO]: [packetevents] You are running the latest release of PacketEvents. Your build: (2.7.0) [15:26:50] [Server thread/INFO]: | You're running the latest version of MyCommand. [15:26:50] [Server thread/WARN]: [MyCommand] Loaded class com.comphenix.protocol.events.PacketListener from ProtocolLib v5.3.0 which is not a depend, softdepend or loadbefore of this plugin. [15:26:50] [Server thread/INFO]: | by emmerrei a.k.a. ivanfromitaly. [15:26:50] [Server thread/INFO]: *-=-=-=-=-=-=-=-=-=-* Done! *-=-=-=-=-=-=-=-=-=-=-* [15:26:50] [Server thread/INFO]: [CratesPlus] Enabling CratesPlus v4.5.3 [15:26:50] [Server thread/WARN]: [CratesPlus] CratesPlus has not yet been officially tested with Bukkit 1.16.5 but should still work [15:26:50] [Server thread/WARN]: [CratesPlus] Please let me know if there are any errors or issues [15:26:50] [Server thread/INFO]: CratesPlus Version 4.5.3 [15:26:50] [Server thread/INFO]: HolographicDisplays was found, hooking in! [15:26:50] [Server thread/INFO]: [DecentHolograms] Enabling DecentHolograms v2.8.12 [15:26:50] [Server thread/INFO]: [NBTAPI] [NBTAPI] Found Minecraft: v1_16_R3! Trying to find NMS support [15:26:50] [Server thread/INFO]: [NBTAPI] [NBTAPI] NMS support 'MC1_16_R3' loaded! [15:26:50] [Server thread/INFO]: [NBTAPI] [NBTAPI] Using the plugin 'DecentHolograms' to create a bStats instance! [15:26:50] [Server thread/INFO]: [AutoMine] Enabling AutoMine v0.1.9 [15:26:50] [Server thread/INFO]: [AutoMine] Шахта загрузится через 15 секунд! [15:26:50] [Server thread/INFO]: [AutoMine] AutoMine Start! [15:26:50] [Server thread/INFO]: [PlaceholderAPI] Successfully registered internal expansion: am [0.1.9] [15:26:50] [Server thread/INFO]: [LiteBans] Enabling LiteBans v2.6.9 [15:26:50] [Server thread/INFO]: [LiteBans] Downloaded from https://directleaks.net [15:26:50] [Server thread/INFO]: [LiteBans] Using default database drivers (version:4). [15:26:50] [Server thread/INFO]: [LiteBans] Loading SQL driver: h2 1.4.197 (org.h2.Driver) [15:26:50] [Server thread/INFO]: [LiteBans] Connecting to database... [15:26:50] [Server thread/INFO]: [LiteBans] Connected to [jdbc:h2:///home/********/plugins/LiteBans/litebans] (148.1 ms). [15:26:50] [Server thread/INFO]: [LiteBans] Database connection fully initialized (152 ms). [15:26:50] [Server thread/INFO]: [LiteBans] v2.6.9 enabled. Startup took 283 ms. [15:26:50] [Server thread/INFO]: [WorldGuard] Enabling WorldGuard v7.0.4+f7ff984 [15:26:50] [Server thread/INFO]: [WorldGuard] Default configuration file written: config.yml [15:26:50] [Server thread/ERROR]: No TreeType mapping for TreeGenerator.TreeType.MANGROVE [15:26:50] [Server thread/ERROR]: No TreeType mapping for TreeGenerator.TreeType.TALL_MANGROVE [15:26:50] [Server thread/ERROR]: No TreeType mapping for TreeGenerator.TreeType.CHERRY [15:26:50] [Server thread/INFO]: [WorldGuard] Default configuration file written: config_world.yml [15:26:50] [Server thread/INFO]: [WorldGuard] Default configuration file written: blacklist.txt [15:26:50] [Server thread/INFO]: [WorldGuard] (world) TNT ignition is PERMITTED. [15:26:50] [Server thread/INFO]: [WorldGuard] (world) Lighters are PERMITTED. [15:26:50] [Server thread/INFO]: [WorldGuard] (world) Lava fire is PERMITTED. [15:26:50] [Server thread/INFO]: [WorldGuard] (world) Fire spread is UNRESTRICTED. [15:26:50] [Server thread/INFO]: [WorldGuard] Loaded configuration for world 'world' [15:26:50] [Server thread/INFO]: [WorldGuard] Default configuration file written: config_world.yml [15:26:50] [Server thread/INFO]: [WorldGuard] Default configuration file written: blacklist.txt [15:26:50] [Server thread/INFO]: [WorldGuard] (world_nether) TNT ignition is PERMITTED. [15:26:50] [Server thread/INFO]: [WorldGuard] (world_nether) Lighters are PERMITTED. [15:26:50] [Server thread/INFO]: [WorldGuard] (world_nether) Lava fire is PERMITTED. [15:26:50] [Server thread/INFO]: [WorldGuard] (world_nether) Fire spread is UNRESTRICTED. [15:26:50] [Server thread/INFO]: [WorldGuard] Loaded configuration for world 'world_nether' [15:26:50] [Server thread/INFO]: [WorldGuard] Default configuration file written: config_world.yml [15:26:50] [Server thread/INFO]: [WorldGuard] Default configuration file written: blacklist.txt [15:26:50] [Server thread/INFO]: [WorldGuard] (world_the_end) TNT ignition is PERMITTED. [15:26:50] [Server thread/INFO]: [WorldGuard] (world_the_end) Lighters are PERMITTED. [15:26:50] [Server thread/INFO]: [WorldGuard] (world_the_end) Lava fire is PERMITTED. [15:26:50] [Server thread/INFO]: [WorldGuard] (world_the_end) Fire spread is UNRESTRICTED. [15:26:50] [Server thread/INFO]: [WorldGuard] Loaded configuration for world 'world_the_end' [15:26:50] [Server thread/INFO]: [WorldGuard] Loading region data... [15:26:50] [Server thread/INFO]: [WorldGuard] Unloading and saving region data that is currently loaded... [15:26:50] [Server thread/INFO]: [WorldGuard] Loading region data for loaded worlds... [15:26:50] [Server thread/INFO]: [WorldGuard] Loading region data... [15:26:50] [Server thread/INFO]: [WorldGuard] Regions saved after UUID migration! This won't happen again unless you change the relevant configuration option in WorldGuard's config. [15:26:51] [Server thread/INFO]: [Multiverse-Core] Enabling Multiverse-Core v4.3.1-b861 [15:26:51] [Server thread/WARN]: [Multiverse-Core] "Multiverse-Core v4.3.1-b861" has registered a listener for org.bukkit.event.entity.EntityCreatePortalEvent on method "public void com.onarandombox.MultiverseCore.listeners.MVPortalListener.entityPortalCreate(org.bukkit.event.entity.EntityCreatePortalEvent)", but the event is Deprecated. "Server performance will be affected"; please notify the authors [dumptruckman, Rigby, fernferret, lithium3141, main--]. [15:26:51] [Server thread/INFO]: [Multiverse-Core] We are aware of the warning about the deprecated event. There is no alternative that allows us to do what we need to do and performance impact is negligible. It is safe to ignore. [15:26:51] [Server thread/WARN]: [Multiverse-Core] Cannot load worlds.yml [15:26:51] [Server thread/INFO]: [Multiverse-Core] Loading World & Settings - 'world' - Env: NORMAL - Type: NORMAL & seed: 5773453126225052148 [15:26:51] [Server thread/INFO]: [Multiverse-Core] Loading World & Settings - 'world_nether' - Env: NETHER - Type: NORMAL & seed: 5773453126225052148 [15:26:51] [Server thread/INFO]: [Multiverse-Core] Loading World & Settings - 'world_the_end' - Env: THE_END - Type: NORMAL & seed: 5773453126225052148 [15:26:51] [Server thread/INFO]: [Multiverse-Core] 3 - World(s) loaded. [15:26:51] [Server thread/WARN]: [Multiverse-Core] Buscript failed to load! The script command will be disabled! If you would like not to see this message, use `/mv conf enablebuscript false` to disable Buscript from loading. [15:26:51] [Server thread/INFO]: [Multiverse-Core] Version 4.3.1-b861 (API v24) Enabled - By dumptruckman, Rigby, fernferret, lithium3141 and main-- [15:26:51] [Server thread/INFO]: [BAirDrop] Enabling BAirDrop v1.0.9 [15:26:51] [Server thread/ERROR]: [org.bukkit.configuration.serialization.ConfigurationSerialization] Could not call method 'public static org.bukkit.Location org.bukkit.Location.deserialize(java.util.Map)' of class org.bukkit.Location for deserialization java.lang.IllegalArgumentException: unknown world at org.bukkit.Location.deserialize(Location.java:1137) ~[patched_1.16.5.jar:git-Paper-794] at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:?] at jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:78) ~[?:?] at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?] at java.lang.reflect.Method.invoke(Method.java:567) ~[?:?] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeViaMethod(ConfigurationSerialization.java:85) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserialize(ConfigurationSerialization.java:127) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeObject(ConfigurationSerialization.java:207) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:37) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructDocument(BaseConstructor.java:173) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.getSingleData(BaseConstructor.java:157) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.loadFromReader(Yaml.java:490) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.load(Yaml.java:416) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadFromString(YamlConfiguration.java:57) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:160) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:128) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadConfiguration(YamlConfiguration.java:188) ~[patched_1.16.5.jar:git-Paper-794] at org.by1337.bairdrop.configManager.CConfig.loadConfiguration(CConfig.java:130) ~[?:?] at org.by1337.bairdrop.BAirDrop.onEnable(BAirDrop.java:88) ~[?:?] at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:263) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:370) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:500) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugin(CraftServer.java:518) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugins(CraftServer.java:432) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.loadWorld(MinecraftServer.java:599) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.DedicatedServer.init(DedicatedServer.java:298) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.w(MinecraftServer.java:1074) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.lambda$a$0(MinecraftServer.java:291) ~[patched_1.16.5.jar:git-Paper-794] at java.lang.Thread.run(Thread.java:831) [?:?] [15:26:51] [Server thread/ERROR]: [org.bukkit.configuration.serialization.ConfigurationSerialization] Could not call method 'public static org.bukkit.inventory.ItemStack org.bukkit.inventory.ItemStack.deserialize(java.util.Map)' of class org.bukkit.inventory.ItemStack for deserialization java.lang.IllegalArgumentException: Newer version! Server downgrades are not supported! at com.google.common.base.Preconditions.checkArgument(Preconditions.java:122) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.util.CraftMagicNumbers.getMaterial(CraftMagicNumbers.java:245) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.inventory.ItemStack.deserialize(ItemStack.java:504) ~[patched_1.16.5.jar:git-Paper-794] at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:?] at jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:78) ~[?:?] at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?] at java.lang.reflect.Method.invoke(Method.java:567) ~[?:?] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeViaMethod(ConfigurationSerialization.java:85) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserialize(ConfigurationSerialization.java:127) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeObject(ConfigurationSerialization.java:207) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:37) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructDocument(BaseConstructor.java:173) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.getSingleData(BaseConstructor.java:157) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.loadFromReader(Yaml.java:490) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.load(Yaml.java:416) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadFromString(YamlConfiguration.java:57) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:160) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:128) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadConfiguration(YamlConfiguration.java:188) ~[patched_1.16.5.jar:git-Paper-794] at org.by1337.bairdrop.configManager.CConfig.loadConfiguration(CConfig.java:130) ~[?:?] at org.by1337.bairdrop.BAirDrop.onEnable(BAirDrop.java:88) ~[?:?] at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:263) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:370) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:500) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugin(CraftServer.java:518) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugins(CraftServer.java:432) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.loadWorld(MinecraftServer.java:599) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.DedicatedServer.init(DedicatedServer.java:298) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.w(MinecraftServer.java:1074) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.lambda$a$0(MinecraftServer.java:291) ~[patched_1.16.5.jar:git-Paper-794] at java.lang.Thread.run(Thread.java:831) [?:?] [15:26:51] [Server thread/ERROR]: [org.bukkit.configuration.serialization.ConfigurationSerialization] Could not call method 'public static org.bukkit.inventory.ItemStack org.bukkit.inventory.ItemStack.deserialize(java.util.Map)' of class org.bukkit.inventory.ItemStack for deserialization java.lang.IllegalArgumentException: Newer version! Server downgrades are not supported! at com.google.common.base.Preconditions.checkArgument(Preconditions.java:122) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.util.CraftMagicNumbers.getMaterial(CraftMagicNumbers.java:245) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.inventory.ItemStack.deserialize(ItemStack.java:504) ~[patched_1.16.5.jar:git-Paper-794] at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:?] at jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:78) ~[?:?] at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?] at java.lang.reflect.Method.invoke(Method.java:567) ~[?:?] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeViaMethod(ConfigurationSerialization.java:85) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserialize(ConfigurationSerialization.java:127) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeObject(ConfigurationSerialization.java:207) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:37) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructDocument(BaseConstructor.java:173) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.getSingleData(BaseConstructor.java:157) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.loadFromReader(Yaml.java:490) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.load(Yaml.java:416) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadFromString(YamlConfiguration.java:57) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:160) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:128) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadConfiguration(YamlConfiguration.java:188) ~[patched_1.16.5.jar:git-Paper-794] at org.by1337.bairdrop.configManager.CConfig.loadConfiguration(CConfig.java:130) ~[?:?] at org.by1337.bairdrop.BAirDrop.onEnable(BAirDrop.java:88) ~[?:?] at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:263) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:370) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:500) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugin(CraftServer.java:518) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugins(CraftServer.java:432) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.loadWorld(MinecraftServer.java:599) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.DedicatedServer.init(DedicatedServer.java:298) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.w(MinecraftServer.java:1074) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.lambda$a$0(MinecraftServer.java:291) ~[patched_1.16.5.jar:git-Paper-794] at java.lang.Thread.run(Thread.java:831) [?:?] [15:26:51] [Server thread/ERROR]: [org.bukkit.configuration.serialization.ConfigurationSerialization] Could not call method 'public static org.bukkit.inventory.ItemStack org.bukkit.inventory.ItemStack.deserialize(java.util.Map)' of class org.bukkit.inventory.ItemStack for deserialization java.lang.IllegalArgumentException: Newer version! Server downgrades are not supported! at com.google.common.base.Preconditions.checkArgument(Preconditions.java:122) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.util.CraftMagicNumbers.getMaterial(CraftMagicNumbers.java:245) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.inventory.ItemStack.deserialize(ItemStack.java:504) ~[patched_1.16.5.jar:git-Paper-794] at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:?] at jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:78) ~[?:?] at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?] at java.lang.reflect.Method.invoke(Method.java:567) ~[?:?] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeViaMethod(ConfigurationSerialization.java:85) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserialize(ConfigurationSerialization.java:127) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeObject(ConfigurationSerialization.java:207) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:37) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructDocument(BaseConstructor.java:173) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.getSingleData(BaseConstructor.java:157) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.loadFromReader(Yaml.java:490) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.load(Yaml.java:416) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadFromString(YamlConfiguration.java:57) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:160) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:128) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadConfiguration(YamlConfiguration.java:188) ~[patched_1.16.5.jar:git-Paper-794] at org.by1337.bairdrop.configManager.CConfig.loadConfiguration(CConfig.java:130) ~[?:?] at org.by1337.bairdrop.BAirDrop.onEnable(BAirDrop.java:88) ~[?:?] at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:263) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:370) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:500) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugin(CraftServer.java:518) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugins(CraftServer.java:432) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.loadWorld(MinecraftServer.java:599) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.DedicatedServer.init(DedicatedServer.java:298) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.w(MinecraftServer.java:1074) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.lambda$a$0(MinecraftServer.java:291) ~[patched_1.16.5.jar:git-Paper-794] at java.lang.Thread.run(Thread.java:831) [?:?] [15:26:51] [Server thread/ERROR]: [org.bukkit.configuration.serialization.ConfigurationSerialization] Could not call method 'public static org.bukkit.inventory.ItemStack org.bukkit.inventory.ItemStack.deserialize(java.util.Map)' of class org.bukkit.inventory.ItemStack for deserialization java.lang.IllegalArgumentException: Newer version! Server downgrades are not supported! at com.google.common.base.Preconditions.checkArgument(Preconditions.java:122) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.util.CraftMagicNumbers.getMaterial(CraftMagicNumbers.java:245) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.inventory.ItemStack.deserialize(ItemStack.java:504) ~[patched_1.16.5.jar:git-Paper-794] at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:?] at jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:78) ~[?:?] at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?] at java.lang.reflect.Method.invoke(Method.java:567) ~[?:?] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeViaMethod(ConfigurationSerialization.java:85) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserialize(ConfigurationSerialization.java:127) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeObject(ConfigurationSerialization.java:207) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:37) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructDocument(BaseConstructor.java:173) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.getSingleData(BaseConstructor.java:157) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.loadFromReader(Yaml.java:490) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.load(Yaml.java:416) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadFromString(YamlConfiguration.java:57) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:160) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:128) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadConfiguration(YamlConfiguration.java:188) ~[patched_1.16.5.jar:git-Paper-794] at org.by1337.bairdrop.configManager.CConfig.loadConfiguration(CConfig.java:130) ~[?:?] at org.by1337.bairdrop.BAirDrop.onEnable(BAirDrop.java:88) ~[?:?] at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:263) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:370) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:500) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugin(CraftServer.java:518) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugins(CraftServer.java:432) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.loadWorld(MinecraftServer.java:599) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.DedicatedServer.init(DedicatedServer.java:298) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.w(MinecraftServer.java:1074) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.lambda$a$0(MinecraftServer.java:291) ~[patched_1.16.5.jar:git-Paper-794] at java.lang.Thread.run(Thread.java:831) [?:?] [15:26:51] [Server thread/ERROR]: [org.bukkit.configuration.serialization.ConfigurationSerialization] Could not call method 'public static org.bukkit.inventory.ItemStack org.bukkit.inventory.ItemStack.deserialize(java.util.Map)' of class org.bukkit.inventory.ItemStack for deserialization java.lang.IllegalArgumentException: Newer version! Server downgrades are not supported! at com.google.common.base.Preconditions.checkArgument(Preconditions.java:122) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.util.CraftMagicNumbers.getMaterial(CraftMagicNumbers.java:245) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.inventory.ItemStack.deserialize(ItemStack.java:504) ~[patched_1.16.5.jar:git-Paper-794] at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:?] at jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:78) ~[?:?] at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?] at java.lang.reflect.Method.invoke(Method.java:567) ~[?:?] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeViaMethod(ConfigurationSerialization.java:85) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserialize(ConfigurationSerialization.java:127) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeObject(ConfigurationSerialization.java:207) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:37) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructDocument(BaseConstructor.java:173) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.getSingleData(BaseConstructor.java:157) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.loadFromReader(Yaml.java:490) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.load(Yaml.java:416) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadFromString(YamlConfiguration.java:57) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:160) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:128) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadConfiguration(YamlConfiguration.java:188) ~[patched_1.16.5.jar:git-Paper-794] at org.by1337.bairdrop.configManager.CConfig.loadConfiguration(CConfig.java:130) ~[?:?] at org.by1337.bairdrop.BAirDrop.onEnable(BAirDrop.java:88) ~[?:?] at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:263) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:370) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:500) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugin(CraftServer.java:518) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugins(CraftServer.java:432) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.loadWorld(MinecraftServer.java:599) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.DedicatedServer.init(DedicatedServer.java:298) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.w(MinecraftServer.java:1074) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.lambda$a$0(MinecraftServer.java:291) ~[patched_1.16.5.jar:git-Paper-794] at java.lang.Thread.run(Thread.java:831) [?:?] [15:26:51] [Server thread/ERROR]: [org.bukkit.configuration.serialization.ConfigurationSerialization] Could not call method 'public static org.bukkit.inventory.ItemStack org.bukkit.inventory.ItemStack.deserialize(java.util.Map)' of class org.bukkit.inventory.ItemStack for deserialization java.lang.IllegalArgumentException: Newer version! Server downgrades are not supported! at com.google.common.base.Preconditions.checkArgument(Preconditions.java:122) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.util.CraftMagicNumbers.getMaterial(CraftMagicNumbers.java:245) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.inventory.ItemStack.deserialize(ItemStack.java:504) ~[patched_1.16.5.jar:git-Paper-794] at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:?] at jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:78) ~[?:?] at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?] at java.lang.reflect.Method.invoke(Method.java:567) ~[?:?] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeViaMethod(ConfigurationSerialization.java:85) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserialize(ConfigurationSerialization.java:127) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeObject(ConfigurationSerialization.java:207) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:37) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructDocument(BaseConstructor.java:173) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.getSingleData(BaseConstructor.java:157) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.loadFromReader(Yaml.java:490) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.load(Yaml.java:416) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadFromString(YamlConfiguration.java:57) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:160) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:128) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadConfiguration(YamlConfiguration.java:188) ~[patched_1.16.5.jar:git-Paper-794] at org.by1337.bairdrop.configManager.CConfig.loadConfiguration(CConfig.java:130) ~[?:?] at org.by1337.bairdrop.BAirDrop.onEnable(BAirDrop.java:88) ~[?:?] at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:263) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:370) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:500) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugin(CraftServer.java:518) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugins(CraftServer.java:432) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.loadWorld(MinecraftServer.java:599) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.DedicatedServer.init(DedicatedServer.java:298) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.w(MinecraftServer.java:1074) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.lambda$a$0(MinecraftServer.java:291) ~[patched_1.16.5.jar:git-Paper-794] at java.lang.Thread.run(Thread.java:831) [?:?] [15:26:51] [Server thread/ERROR]: [org.bukkit.configuration.serialization.ConfigurationSerialization] Could not call method 'public static org.bukkit.inventory.ItemStack org.bukkit.inventory.ItemStack.deserialize(java.util.Map)' of class org.bukkit.inventory.ItemStack for deserialization java.lang.IllegalArgumentException: Newer version! Server downgrades are not supported! at com.google.common.base.Preconditions.checkArgument(Preconditions.java:122) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.util.CraftMagicNumbers.getMaterial(CraftMagicNumbers.java:245) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.inventory.ItemStack.deserialize(ItemStack.java:504) ~[patched_1.16.5.jar:git-Paper-794] at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:?] at jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:78) ~[?:?] at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?] at java.lang.reflect.Method.invoke(Method.java:567) ~[?:?] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeViaMethod(ConfigurationSerialization.java:85) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserialize(ConfigurationSerialization.java:127) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeObject(ConfigurationSerialization.java:207) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:37) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructDocument(BaseConstructor.java:173) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.getSingleData(BaseConstructor.java:157) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.loadFromReader(Yaml.java:490) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.load(Yaml.java:416) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadFromString(YamlConfiguration.java:57) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:160) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:128) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadConfiguration(YamlConfiguration.java:188) ~[patched_1.16.5.jar:git-Paper-794] at org.by1337.bairdrop.configManager.CConfig.loadConfiguration(CConfig.java:130) ~[?:?] at org.by1337.bairdrop.BAirDrop.onEnable(BAirDrop.java:88) ~[?:?] at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:263) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:370) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:500) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugin(CraftServer.java:518) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugins(CraftServer.java:432) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.loadWorld(MinecraftServer.java:599) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.DedicatedServer.init(DedicatedServer.java:298) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.w(MinecraftServer.java:1074) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.lambda$a$0(MinecraftServer.java:291) ~[patched_1.16.5.jar:git-Paper-794] at java.lang.Thread.run(Thread.java:831) [?:?] [15:26:51] [Server thread/ERROR]: [org.bukkit.configuration.serialization.ConfigurationSerialization] Could not call method 'public static org.bukkit.inventory.ItemStack org.bukkit.inventory.ItemStack.deserialize(java.util.Map)' of class org.bukkit.inventory.ItemStack for deserialization java.lang.IllegalArgumentException: Newer version! Server downgrades are not supported! at com.google.common.base.Preconditions.checkArgument(Preconditions.java:122) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.util.CraftMagicNumbers.getMaterial(CraftMagicNumbers.java:245) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.inventory.ItemStack.deserialize(ItemStack.java:504) ~[patched_1.16.5.jar:git-Paper-794] at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:?] at jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:78) ~[?:?] at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?] at java.lang.reflect.Method.invoke(Method.java:567) ~[?:?] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeViaMethod(ConfigurationSerialization.java:85) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserialize(ConfigurationSerialization.java:127) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeObject(ConfigurationSerialization.java:207) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:37) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructDocument(BaseConstructor.java:173) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.getSingleData(BaseConstructor.java:157) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.loadFromReader(Yaml.java:490) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.load(Yaml.java:416) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadFromString(YamlConfiguration.java:57) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:160) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:128) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadConfiguration(YamlConfiguration.java:188) ~[patched_1.16.5.jar:git-Paper-794] at org.by1337.bairdrop.configManager.CConfig.loadConfiguration(CConfig.java:130) ~[?:?] at org.by1337.bairdrop.BAirDrop.onEnable(BAirDrop.java:88) ~[?:?] at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:263) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:370) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:500) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugin(CraftServer.java:518) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugins(CraftServer.java:432) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.loadWorld(MinecraftServer.java:599) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.DedicatedServer.init(DedicatedServer.java:298) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.w(MinecraftServer.java:1074) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.lambda$a$0(MinecraftServer.java:291) ~[patched_1.16.5.jar:git-Paper-794] at java.lang.Thread.run(Thread.java:831) [?:?] [15:26:51] [Server thread/ERROR]: [org.bukkit.configuration.serialization.ConfigurationSerialization] Could not call method 'public static org.bukkit.inventory.ItemStack org.bukkit.inventory.ItemStack.deserialize(java.util.Map)' of class org.bukkit.inventory.ItemStack for deserialization java.lang.IllegalArgumentException: Newer version! Server downgrades are not supported! at com.google.common.base.Preconditions.checkArgument(Preconditions.java:122) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.util.CraftMagicNumbers.getMaterial(CraftMagicNumbers.java:245) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.inventory.ItemStack.deserialize(ItemStack.java:504) ~[patched_1.16.5.jar:git-Paper-794] at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:?] at jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:78) ~[?:?] at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?] at java.lang.reflect.Method.invoke(Method.java:567) ~[?:?] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeViaMethod(ConfigurationSerialization.java:85) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserialize(ConfigurationSerialization.java:127) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeObject(ConfigurationSerialization.java:207) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:37) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructDocument(BaseConstructor.java:173) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.getSingleData(BaseConstructor.java:157) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.loadFromReader(Yaml.java:490) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.load(Yaml.java:416) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadFromString(YamlConfiguration.java:57) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:160) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:128) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadConfiguration(YamlConfiguration.java:188) ~[patched_1.16.5.jar:git-Paper-794] at org.by1337.bairdrop.configManager.CConfig.loadConfiguration(CConfig.java:130) ~[?:?] at org.by1337.bairdrop.BAirDrop.onEnable(BAirDrop.java:88) ~[?:?] at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:263) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:370) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:500) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugin(CraftServer.java:518) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugins(CraftServer.java:432) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.loadWorld(MinecraftServer.java:599) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.DedicatedServer.init(DedicatedServer.java:298) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.w(MinecraftServer.java:1074) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.lambda$a$0(MinecraftServer.java:291) ~[patched_1.16.5.jar:git-Paper-794] at java.lang.Thread.run(Thread.java:831) [?:?] [15:26:51] [Server thread/ERROR]: [org.bukkit.configuration.serialization.ConfigurationSerialization] Could not call method 'public static org.bukkit.inventory.ItemStack org.bukkit.inventory.ItemStack.deserialize(java.util.Map)' of class org.bukkit.inventory.ItemStack for deserialization java.lang.IllegalArgumentException: Newer version! Server downgrades are not supported! at com.google.common.base.Preconditions.checkArgument(Preconditions.java:122) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.util.CraftMagicNumbers.getMaterial(CraftMagicNumbers.java:245) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.inventory.ItemStack.deserialize(ItemStack.java:504) ~[patched_1.16.5.jar:git-Paper-794] at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:?] at jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:78) ~[?:?] at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?] at java.lang.reflect.Method.invoke(Method.java:567) ~[?:?] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeViaMethod(ConfigurationSerialization.java:85) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserialize(ConfigurationSerialization.java:127) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeObject(ConfigurationSerialization.java:207) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:37) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructDocument(BaseConstructor.java:173) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.getSingleData(BaseConstructor.java:157) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.loadFromReader(Yaml.java:490) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.load(Yaml.java:416) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadFromString(YamlConfiguration.java:57) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:160) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:128) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadConfiguration(YamlConfiguration.java:188) ~[patched_1.16.5.jar:git-Paper-794] at org.by1337.bairdrop.configManager.CConfig.loadConfiguration(CConfig.java:130) ~[?:?] at org.by1337.bairdrop.BAirDrop.onEnable(BAirDrop.java:88) ~[?:?] at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:263) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:370) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:500) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugin(CraftServer.java:518) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugins(CraftServer.java:432) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.loadWorld(MinecraftServer.java:599) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.DedicatedServer.init(DedicatedServer.java:298) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.w(MinecraftServer.java:1074) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.lambda$a$0(MinecraftServer.java:291) ~[patched_1.16.5.jar:git-Paper-794] at java.lang.Thread.run(Thread.java:831) [?:?] [15:26:51] [Server thread/ERROR]: [org.bukkit.configuration.serialization.ConfigurationSerialization] Could not call method 'public static org.bukkit.inventory.ItemStack org.bukkit.inventory.ItemStack.deserialize(java.util.Map)' of class org.bukkit.inventory.ItemStack for deserialization java.lang.IllegalArgumentException: Newer version! Server downgrades are not supported! at com.google.common.base.Preconditions.checkArgument(Preconditions.java:122) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.util.CraftMagicNumbers.getMaterial(CraftMagicNumbers.java:245) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.inventory.ItemStack.deserialize(ItemStack.java:504) ~[patched_1.16.5.jar:git-Paper-794] at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:?] at jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:78) ~[?:?] at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?] at java.lang.reflect.Method.invoke(Method.java:567) ~[?:?] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeViaMethod(ConfigurationSerialization.java:85) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserialize(ConfigurationSerialization.java:127) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeObject(ConfigurationSerialization.java:207) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:37) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructDocument(BaseConstructor.java:173) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.getSingleData(BaseConstructor.java:157) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.loadFromReader(Yaml.java:490) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.load(Yaml.java:416) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadFromString(YamlConfiguration.java:57) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:160) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:128) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadConfiguration(YamlConfiguration.java:188) ~[patched_1.16.5.jar:git-Paper-794] at org.by1337.bairdrop.configManager.CConfig.loadConfiguration(CConfig.java:130) ~[?:?] at org.by1337.bairdrop.BAirDrop.onEnable(BAirDrop.java:88) ~[?:?] at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:263) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:370) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:500) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugin(CraftServer.java:518) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugins(CraftServer.java:432) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.loadWorld(MinecraftServer.java:599) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.DedicatedServer.init(DedicatedServer.java:298) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.w(MinecraftServer.java:1074) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.lambda$a$0(MinecraftServer.java:291) ~[patched_1.16.5.jar:git-Paper-794] at java.lang.Thread.run(Thread.java:831) [?:?] [15:26:51] [Server thread/ERROR]: [org.bukkit.configuration.serialization.ConfigurationSerialization] Could not call method 'public static org.bukkit.inventory.ItemStack org.bukkit.inventory.ItemStack.deserialize(java.util.Map)' of class org.bukkit.inventory.ItemStack for deserialization java.lang.IllegalArgumentException: Newer version! Server downgrades are not supported! at com.google.common.base.Preconditions.checkArgument(Preconditions.java:122) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.util.CraftMagicNumbers.getMaterial(CraftMagicNumbers.java:245) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.inventory.ItemStack.deserialize(ItemStack.java:504) ~[patched_1.16.5.jar:git-Paper-794] at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:?] at jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:78) ~[?:?] at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?] at java.lang.reflect.Method.invoke(Method.java:567) ~[?:?] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeViaMethod(ConfigurationSerialization.java:85) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserialize(ConfigurationSerialization.java:127) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeObject(ConfigurationSerialization.java:207) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:37) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructDocument(BaseConstructor.java:173) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.getSingleData(BaseConstructor.java:157) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.loadFromReader(Yaml.java:490) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.load(Yaml.java:416) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadFromString(YamlConfiguration.java:57) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:160) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:128) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadConfiguration(YamlConfiguration.java:188) ~[patched_1.16.5.jar:git-Paper-794] at org.by1337.bairdrop.configManager.CConfig.loadConfiguration(CConfig.java:130) ~[?:?] at org.by1337.bairdrop.BAirDrop.onEnable(BAirDrop.java:88) ~[?:?] at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:263) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:370) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:500) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugin(CraftServer.java:518) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugins(CraftServer.java:432) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.loadWorld(MinecraftServer.java:599) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.DedicatedServer.init(DedicatedServer.java:298) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.w(MinecraftServer.java:1074) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.lambda$a$0(MinecraftServer.java:291) ~[patched_1.16.5.jar:git-Paper-794] at java.lang.Thread.run(Thread.java:831) [?:?] [15:26:51] [Server thread/ERROR]: [org.bukkit.configuration.serialization.ConfigurationSerialization] Could not call method 'public static org.bukkit.inventory.ItemStack org.bukkit.inventory.ItemStack.deserialize(java.util.Map)' of class org.bukkit.inventory.ItemStack for deserialization java.lang.IllegalArgumentException: Newer version! Server downgrades are not supported! at com.google.common.base.Preconditions.checkArgument(Preconditions.java:122) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.util.CraftMagicNumbers.getMaterial(CraftMagicNumbers.java:245) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.inventory.ItemStack.deserialize(ItemStack.java:504) ~[patched_1.16.5.jar:git-Paper-794] at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:?] at jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:78) ~[?:?] at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?] at java.lang.reflect.Method.invoke(Method.java:567) ~[?:?] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeViaMethod(ConfigurationSerialization.java:85) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserialize(ConfigurationSerialization.java:127) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeObject(ConfigurationSerialization.java:207) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:37) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructDocument(BaseConstructor.java:173) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.getSingleData(BaseConstructor.java:157) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.loadFromReader(Yaml.java:490) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.load(Yaml.java:416) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadFromString(YamlConfiguration.java:57) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:160) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:128) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadConfiguration(YamlConfiguration.java:188) ~[patched_1.16.5.jar:git-Paper-794] at org.by1337.bairdrop.configManager.CConfig.loadConfiguration(CConfig.java:130) ~[?:?] at org.by1337.bairdrop.BAirDrop.onEnable(BAirDrop.java:88) ~[?:?] at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:263) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:370) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:500) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugin(CraftServer.java:518) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugins(CraftServer.java:432) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.loadWorld(MinecraftServer.java:599) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.DedicatedServer.init(DedicatedServer.java:298) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.w(MinecraftServer.java:1074) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.lambda$a$0(MinecraftServer.java:291) ~[patched_1.16.5.jar:git-Paper-794] at java.lang.Thread.run(Thread.java:831) [?:?] [15:26:51] [Server thread/ERROR]: [org.bukkit.configuration.serialization.ConfigurationSerialization] Could not call method 'public static org.bukkit.inventory.ItemStack org.bukkit.inventory.ItemStack.deserialize(java.util.Map)' of class org.bukkit.inventory.ItemStack for deserialization java.lang.IllegalArgumentException: Newer version! Server downgrades are not supported! at com.google.common.base.Preconditions.checkArgument(Preconditions.java:122) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.util.CraftMagicNumbers.getMaterial(CraftMagicNumbers.java:245) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.inventory.ItemStack.deserialize(ItemStack.java:504) ~[patched_1.16.5.jar:git-Paper-794] at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:?] at jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:78) ~[?:?] at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?] at java.lang.reflect.Method.invoke(Method.java:567) ~[?:?] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeViaMethod(ConfigurationSerialization.java:85) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserialize(ConfigurationSerialization.java:127) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeObject(ConfigurationSerialization.java:207) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:37) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructDocument(BaseConstructor.java:173) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.getSingleData(BaseConstructor.java:157) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.loadFromReader(Yaml.java:490) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.load(Yaml.java:416) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadFromString(YamlConfiguration.java:57) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:160) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:128) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadConfiguration(YamlConfiguration.java:188) ~[patched_1.16.5.jar:git-Paper-794] at org.by1337.bairdrop.configManager.CConfig.loadConfiguration(CConfig.java:130) ~[?:?] at org.by1337.bairdrop.BAirDrop.onEnable(BAirDrop.java:88) ~[?:?] at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:263) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:370) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:500) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugin(CraftServer.java:518) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugins(CraftServer.java:432) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.loadWorld(MinecraftServer.java:599) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.DedicatedServer.init(DedicatedServer.java:298) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.w(MinecraftServer.java:1074) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.lambda$a$0(MinecraftServer.java:291) ~[patched_1.16.5.jar:git-Paper-794] at java.lang.Thread.run(Thread.java:831) [?:?] [15:26:51] [Server thread/ERROR]: [org.bukkit.configuration.serialization.ConfigurationSerialization] Could not call method 'public static org.bukkit.inventory.ItemStack org.bukkit.inventory.ItemStack.deserialize(java.util.Map)' of class org.bukkit.inventory.ItemStack for deserialization java.lang.IllegalArgumentException: Newer version! Server downgrades are not supported! at com.google.common.base.Preconditions.checkArgument(Preconditions.java:122) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.util.CraftMagicNumbers.getMaterial(CraftMagicNumbers.java:245) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.inventory.ItemStack.deserialize(ItemStack.java:504) ~[patched_1.16.5.jar:git-Paper-794] at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:?] at jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:78) ~[?:?] at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?] at java.lang.reflect.Method.invoke(Method.java:567) ~[?:?] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeViaMethod(ConfigurationSerialization.java:85) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserialize(ConfigurationSerialization.java:127) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeObject(ConfigurationSerialization.java:207) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:37) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructDocument(BaseConstructor.java:173) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.getSingleData(BaseConstructor.java:157) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.loadFromReader(Yaml.java:490) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.load(Yaml.java:416) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadFromString(YamlConfiguration.java:57) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:160) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:128) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadConfiguration(YamlConfiguration.java:188) ~[patched_1.16.5.jar:git-Paper-794] at org.by1337.bairdrop.configManager.CConfig.loadConfiguration(CConfig.java:130) ~[?:?] at org.by1337.bairdrop.BAirDrop.onEnable(BAirDrop.java:88) ~[?:?] at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:263) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:370) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:500) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugin(CraftServer.java:518) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugins(CraftServer.java:432) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.loadWorld(MinecraftServer.java:599) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.DedicatedServer.init(DedicatedServer.java:298) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.w(MinecraftServer.java:1074) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.lambda$a$0(MinecraftServer.java:291) ~[patched_1.16.5.jar:git-Paper-794] at java.lang.Thread.run(Thread.java:831) [?:?] [15:26:51] [Server thread/ERROR]: [org.bukkit.configuration.serialization.ConfigurationSerialization] Could not call method 'public static org.bukkit.inventory.ItemStack org.bukkit.inventory.ItemStack.deserialize(java.util.Map)' of class org.bukkit.inventory.ItemStack for deserialization java.lang.IllegalArgumentException: Newer version! Server downgrades are not supported! at com.google.common.base.Preconditions.checkArgument(Preconditions.java:122) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.util.CraftMagicNumbers.getMaterial(CraftMagicNumbers.java:245) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.inventory.ItemStack.deserialize(ItemStack.java:504) ~[patched_1.16.5.jar:git-Paper-794] at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:?] at jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:78) ~[?:?] at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?] at java.lang.reflect.Method.invoke(Method.java:567) ~[?:?] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeViaMethod(ConfigurationSerialization.java:85) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserialize(ConfigurationSerialization.java:127) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeObject(ConfigurationSerialization.java:207) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:37) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructDocument(BaseConstructor.java:173) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.getSingleData(BaseConstructor.java:157) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.loadFromReader(Yaml.java:490) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.load(Yaml.java:416) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadFromString(YamlConfiguration.java:57) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:160) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:128) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadConfiguration(YamlConfiguration.java:188) ~[patched_1.16.5.jar:git-Paper-794] at org.by1337.bairdrop.configManager.CConfig.loadConfiguration(CConfig.java:130) ~[?:?] at org.by1337.bairdrop.BAirDrop.onEnable(BAirDrop.java:88) ~[?:?] at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:263) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:370) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:500) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugin(CraftServer.java:518) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugins(CraftServer.java:432) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.loadWorld(MinecraftServer.java:599) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.DedicatedServer.init(DedicatedServer.java:298) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.w(MinecraftServer.java:1074) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.lambda$a$0(MinecraftServer.java:291) ~[patched_1.16.5.jar:git-Paper-794] at java.lang.Thread.run(Thread.java:831) [?:?] [15:26:51] [Server thread/ERROR]: [org.bukkit.configuration.serialization.ConfigurationSerialization] Could not call method 'public static org.bukkit.inventory.ItemStack org.bukkit.inventory.ItemStack.deserialize(java.util.Map)' of class org.bukkit.inventory.ItemStack for deserialization java.lang.IllegalArgumentException: Newer version! Server downgrades are not supported! at com.google.common.base.Preconditions.checkArgument(Preconditions.java:122) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.util.CraftMagicNumbers.getMaterial(CraftMagicNumbers.java:245) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.inventory.ItemStack.deserialize(ItemStack.java:504) ~[patched_1.16.5.jar:git-Paper-794] at jdk.internal.reflect.GeneratedMethodAccessor23.invoke(Unknown Source) ~[?:?] at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?] at java.lang.reflect.Method.invoke(Method.java:567) ~[?:?] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeViaMethod(ConfigurationSerialization.java:85) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserialize(ConfigurationSerialization.java:127) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeObject(ConfigurationSerialization.java:207) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:37) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructDocument(BaseConstructor.java:173) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.getSingleData(BaseConstructor.java:157) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.loadFromReader(Yaml.java:490) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.load(Yaml.java:416) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadFromString(YamlConfiguration.java:57) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:160) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:128) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadConfiguration(YamlConfiguration.java:188) ~[patched_1.16.5.jar:git-Paper-794] at org.by1337.bairdrop.configManager.CConfig.loadConfiguration(CConfig.java:130) ~[?:?] at org.by1337.bairdrop.BAirDrop.onEnable(BAirDrop.java:88) ~[?:?] at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:263) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:370) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:500) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugin(CraftServer.java:518) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugins(CraftServer.java:432) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.loadWorld(MinecraftServer.java:599) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.DedicatedServer.init(DedicatedServer.java:298) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.w(MinecraftServer.java:1074) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.lambda$a$0(MinecraftServer.java:291) ~[patched_1.16.5.jar:git-Paper-794] at java.lang.Thread.run(Thread.java:831) [?:?] [15:26:51] [Server thread/ERROR]: [org.bukkit.configuration.serialization.ConfigurationSerialization] Could not call method 'public static org.bukkit.inventory.ItemStack org.bukkit.inventory.ItemStack.deserialize(java.util.Map)' of class org.bukkit.inventory.ItemStack for deserialization java.lang.IllegalArgumentException: Newer version! Server downgrades are not supported! at com.google.common.base.Preconditions.checkArgument(Preconditions.java:122) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.util.CraftMagicNumbers.getMaterial(CraftMagicNumbers.java:245) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.inventory.ItemStack.deserialize(ItemStack.java:504) ~[patched_1.16.5.jar:git-Paper-794] at jdk.internal.reflect.GeneratedMethodAccessor23.invoke(Unknown Source) ~[?:?] at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?] at java.lang.reflect.Method.invoke(Method.java:567) ~[?:?] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeViaMethod(ConfigurationSerialization.java:85) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserialize(ConfigurationSerialization.java:127) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeObject(ConfigurationSerialization.java:207) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:37) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructDocument(BaseConstructor.java:173) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.getSingleData(BaseConstructor.java:157) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.loadFromReader(Yaml.java:490) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.load(Yaml.java:416) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadFromString(YamlConfiguration.java:57) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:160) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:128) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadConfiguration(YamlConfiguration.java:188) ~[patched_1.16.5.jar:git-Paper-794] at org.by1337.bairdrop.configManager.CConfig.loadConfiguration(CConfig.java:130) ~[?:?] at org.by1337.bairdrop.BAirDrop.onEnable(BAirDrop.java:88) ~[?:?] at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:263) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:370) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:500) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugin(CraftServer.java:518) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugins(CraftServer.java:432) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.loadWorld(MinecraftServer.java:599) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.DedicatedServer.init(DedicatedServer.java:298) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.w(MinecraftServer.java:1074) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.lambda$a$0(MinecraftServer.java:291) ~[patched_1.16.5.jar:git-Paper-794] at java.lang.Thread.run(Thread.java:831) [?:?] [15:26:51] [Server thread/ERROR]: [org.bukkit.configuration.serialization.ConfigurationSerialization] Could not call method 'public static org.bukkit.inventory.ItemStack org.bukkit.inventory.ItemStack.deserialize(java.util.Map)' of class org.bukkit.inventory.ItemStack for deserialization java.lang.IllegalArgumentException: Newer version! Server downgrades are not supported! at com.google.common.base.Preconditions.checkArgument(Preconditions.java:122) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.util.CraftMagicNumbers.getMaterial(CraftMagicNumbers.java:245) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.inventory.ItemStack.deserialize(ItemStack.java:504) ~[patched_1.16.5.jar:git-Paper-794] at jdk.internal.reflect.GeneratedMethodAccessor23.invoke(Unknown Source) ~[?:?] at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?] at java.lang.reflect.Method.invoke(Method.java:567) ~[?:?] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeViaMethod(ConfigurationSerialization.java:85) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserialize(ConfigurationSerialization.java:127) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeObject(ConfigurationSerialization.java:207) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:37) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructDocument(BaseConstructor.java:173) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.getSingleData(BaseConstructor.java:157) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.loadFromReader(Yaml.java:490) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.load(Yaml.java:416) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadFromString(YamlConfiguration.java:57) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:160) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:128) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadConfiguration(YamlConfiguration.java:188) ~[patched_1.16.5.jar:git-Paper-794] at org.by1337.bairdrop.configManager.CConfig.loadConfiguration(CConfig.java:130) ~[?:?] at org.by1337.bairdrop.BAirDrop.onEnable(BAirDrop.java:88) ~[?:?] at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:263) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:370) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:500) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugin(CraftServer.java:518) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugins(CraftServer.java:432) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.loadWorld(MinecraftServer.java:599) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.DedicatedServer.init(DedicatedServer.java:298) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.w(MinecraftServer.java:1074) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.lambda$a$0(MinecraftServer.java:291) ~[patched_1.16.5.jar:git-Paper-794] at java.lang.Thread.run(Thread.java:831) [?:?] [15:26:51] [Server thread/ERROR]: [org.bukkit.configuration.serialization.ConfigurationSerialization] Could not call method 'public static org.bukkit.inventory.ItemStack org.bukkit.inventory.ItemStack.deserialize(java.util.Map)' of class org.bukkit.inventory.ItemStack for deserialization java.lang.IllegalArgumentException: Newer version! Server downgrades are not supported! at com.google.common.base.Preconditions.checkArgument(Preconditions.java:122) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.util.CraftMagicNumbers.getMaterial(CraftMagicNumbers.java:245) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.inventory.ItemStack.deserialize(ItemStack.java:504) ~[patched_1.16.5.jar:git-Paper-794] at jdk.internal.reflect.GeneratedMethodAccessor23.invoke(Unknown Source) ~[?:?] at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?] at java.lang.reflect.Method.invoke(Method.java:567) ~[?:?] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeViaMethod(ConfigurationSerialization.java:85) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserialize(ConfigurationSerialization.java:127) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeObject(ConfigurationSerialization.java:207) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:37) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructDocument(BaseConstructor.java:173) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.getSingleData(BaseConstructor.java:157) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.loadFromReader(Yaml.java:490) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.load(Yaml.java:416) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadFromString(YamlConfiguration.java:57) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:160) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:128) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadConfiguration(YamlConfiguration.java:188) ~[patched_1.16.5.jar:git-Paper-794] at org.by1337.bairdrop.configManager.CConfig.loadConfiguration(CConfig.java:130) ~[?:?] at org.by1337.bairdrop.BAirDrop.onEnable(BAirDrop.java:88) ~[?:?] at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:263) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:370) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:500) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugin(CraftServer.java:518) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugins(CraftServer.java:432) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.loadWorld(MinecraftServer.java:599) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.DedicatedServer.init(DedicatedServer.java:298) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.w(MinecraftServer.java:1074) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.lambda$a$0(MinecraftServer.java:291) ~[patched_1.16.5.jar:git-Paper-794] at java.lang.Thread.run(Thread.java:831) [?:?] [15:26:51] [Server thread/ERROR]: [org.bukkit.configuration.serialization.ConfigurationSerialization] Could not call method 'public static org.bukkit.inventory.ItemStack org.bukkit.inventory.ItemStack.deserialize(java.util.Map)' of class org.bukkit.inventory.ItemStack for deserialization java.lang.IllegalArgumentException: Newer version! Server downgrades are not supported! at com.google.common.base.Preconditions.checkArgument(Preconditions.java:122) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.util.CraftMagicNumbers.getMaterial(CraftMagicNumbers.java:245) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.inventory.ItemStack.deserialize(ItemStack.java:504) ~[patched_1.16.5.jar:git-Paper-794] at jdk.internal.reflect.GeneratedMethodAccessor23.invoke(Unknown Source) ~[?:?] at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?] at java.lang.reflect.Method.invoke(Method.java:567) ~[?:?] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeViaMethod(ConfigurationSerialization.java:85) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserialize(ConfigurationSerialization.java:127) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeObject(ConfigurationSerialization.java:207) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:37) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructDocument(BaseConstructor.java:173) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.getSingleData(BaseConstructor.java:157) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.loadFromReader(Yaml.java:490) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.load(Yaml.java:416) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadFromString(YamlConfiguration.java:57) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:160) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:128) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadConfiguration(YamlConfiguration.java:188) ~[patched_1.16.5.jar:git-Paper-794] at org.by1337.bairdrop.configManager.CConfig.loadConfiguration(CConfig.java:130) ~[?:?] at org.by1337.bairdrop.BAirDrop.onEnable(BAirDrop.java:88) ~[?:?] at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:263) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:370) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:500) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugin(CraftServer.java:518) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugins(CraftServer.java:432) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.loadWorld(MinecraftServer.java:599) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.DedicatedServer.init(DedicatedServer.java:298) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.w(MinecraftServer.java:1074) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.lambda$a$0(MinecraftServer.java:291) ~[patched_1.16.5.jar:git-Paper-794] at java.lang.Thread.run(Thread.java:831) [?:?] [15:26:51] [Server thread/ERROR]: [org.bukkit.configuration.serialization.ConfigurationSerialization] Could not call method 'public static org.bukkit.inventory.ItemStack org.bukkit.inventory.ItemStack.deserialize(java.util.Map)' of class org.bukkit.inventory.ItemStack for deserialization java.lang.IllegalArgumentException: Newer version! Server downgrades are not supported! at com.google.common.base.Preconditions.checkArgument(Preconditions.java:122) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.util.CraftMagicNumbers.getMaterial(CraftMagicNumbers.java:245) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.inventory.ItemStack.deserialize(ItemStack.java:504) ~[patched_1.16.5.jar:git-Paper-794] at jdk.internal.reflect.GeneratedMethodAccessor23.invoke(Unknown Source) ~[?:?] at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?] at java.lang.reflect.Method.invoke(Method.java:567) ~[?:?] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeViaMethod(ConfigurationSerialization.java:85) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserialize(ConfigurationSerialization.java:127) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeObject(ConfigurationSerialization.java:207) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:37) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructDocument(BaseConstructor.java:173) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.getSingleData(BaseConstructor.java:157) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.loadFromReader(Yaml.java:490) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.load(Yaml.java:416) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadFromString(YamlConfiguration.java:57) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:160) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:128) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadConfiguration(YamlConfiguration.java:188) ~[patched_1.16.5.jar:git-Paper-794] at org.by1337.bairdrop.configManager.CConfig.loadConfiguration(CConfig.java:130) ~[?:?] at org.by1337.bairdrop.BAirDrop.onEnable(BAirDrop.java:88) ~[?:?] at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:263) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:370) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:500) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugin(CraftServer.java:518) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugins(CraftServer.java:432) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.loadWorld(MinecraftServer.java:599) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.DedicatedServer.init(DedicatedServer.java:298) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.w(MinecraftServer.java:1074) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.lambda$a$0(MinecraftServer.java:291) ~[patched_1.16.5.jar:git-Paper-794] at java.lang.Thread.run(Thread.java:831) [?:?] [15:26:51] [Server thread/ERROR]: [org.bukkit.configuration.serialization.ConfigurationSerialization] Could not call method 'public static org.bukkit.inventory.ItemStack org.bukkit.inventory.ItemStack.deserialize(java.util.Map)' of class org.bukkit.inventory.ItemStack for deserialization java.lang.IllegalArgumentException: Newer version! Server downgrades are not supported! at com.google.common.base.Preconditions.checkArgument(Preconditions.java:122) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.util.CraftMagicNumbers.getMaterial(CraftMagicNumbers.java:245) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.inventory.ItemStack.deserialize(ItemStack.java:504) ~[patched_1.16.5.jar:git-Paper-794] at jdk.internal.reflect.GeneratedMethodAccessor23.invoke(Unknown Source) ~[?:?] at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?] at java.lang.reflect.Method.invoke(Method.java:567) ~[?:?] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeViaMethod(ConfigurationSerialization.java:85) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserialize(ConfigurationSerialization.java:127) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeObject(ConfigurationSerialization.java:207) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:37) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructDocument(BaseConstructor.java:173) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.getSingleData(BaseConstructor.java:157) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.loadFromReader(Yaml.java:490) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.load(Yaml.java:416) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadFromString(YamlConfiguration.java:57) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:160) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:128) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadConfiguration(YamlConfiguration.java:188) ~[patched_1.16.5.jar:git-Paper-794] at org.by1337.bairdrop.configManager.CConfig.loadConfiguration(CConfig.java:130) ~[?:?] at org.by1337.bairdrop.BAirDrop.onEnable(BAirDrop.java:88) ~[?:?] at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:263) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:370) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:500) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugin(CraftServer.java:518) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugins(CraftServer.java:432) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.loadWorld(MinecraftServer.java:599) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.DedicatedServer.init(DedicatedServer.java:298) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.w(MinecraftServer.java:1074) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.lambda$a$0(MinecraftServer.java:291) ~[patched_1.16.5.jar:git-Paper-794] at java.lang.Thread.run(Thread.java:831) [?:?] [15:26:51] [Server thread/ERROR]: [org.bukkit.configuration.serialization.ConfigurationSerialization] Could not call method 'public static org.bukkit.inventory.ItemStack org.bukkit.inventory.ItemStack.deserialize(java.util.Map)' of class org.bukkit.inventory.ItemStack for deserialization java.lang.IllegalArgumentException: Newer version! Server downgrades are not supported! at com.google.common.base.Preconditions.checkArgument(Preconditions.java:122) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.util.CraftMagicNumbers.getMaterial(CraftMagicNumbers.java:245) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.inventory.ItemStack.deserialize(ItemStack.java:504) ~[patched_1.16.5.jar:git-Paper-794] at jdk.internal.reflect.GeneratedMethodAccessor23.invoke(Unknown Source) ~[?:?] at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?] at java.lang.reflect.Method.invoke(Method.java:567) ~[?:?] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeViaMethod(ConfigurationSerialization.java:85) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserialize(ConfigurationSerialization.java:127) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeObject(ConfigurationSerialization.java:207) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:37) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructDocument(BaseConstructor.java:173) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.getSingleData(BaseConstructor.java:157) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.loadFromReader(Yaml.java:490) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.load(Yaml.java:416) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadFromString(YamlConfiguration.java:57) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:160) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:128) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadConfiguration(YamlConfiguration.java:188) ~[patched_1.16.5.jar:git-Paper-794] at org.by1337.bairdrop.configManager.CConfig.loadConfiguration(CConfig.java:130) ~[?:?] at org.by1337.bairdrop.BAirDrop.onEnable(BAirDrop.java:88) ~[?:?] at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:263) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:370) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:500) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugin(CraftServer.java:518) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugins(CraftServer.java:432) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.loadWorld(MinecraftServer.java:599) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.DedicatedServer.init(DedicatedServer.java:298) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.w(MinecraftServer.java:1074) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.lambda$a$0(MinecraftServer.java:291) ~[patched_1.16.5.jar:git-Paper-794] at java.lang.Thread.run(Thread.java:831) [?:?] [15:26:51] [Server thread/ERROR]: [org.bukkit.configuration.serialization.ConfigurationSerialization] Could not call method 'public static org.bukkit.inventory.ItemStack org.bukkit.inventory.ItemStack.deserialize(java.util.Map)' of class org.bukkit.inventory.ItemStack for deserialization java.lang.IllegalArgumentException: Newer version! Server downgrades are not supported! at com.google.common.base.Preconditions.checkArgument(Preconditions.java:122) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.util.CraftMagicNumbers.getMaterial(CraftMagicNumbers.java:245) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.inventory.ItemStack.deserialize(ItemStack.java:504) ~[patched_1.16.5.jar:git-Paper-794] at jdk.internal.reflect.GeneratedMethodAccessor23.invoke(Unknown Source) ~[?:?] at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?] at java.lang.reflect.Method.invoke(Method.java:567) ~[?:?] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeViaMethod(ConfigurationSerialization.java:85) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserialize(ConfigurationSerialization.java:127) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeObject(ConfigurationSerialization.java:207) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:37) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructDocument(BaseConstructor.java:173) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.getSingleData(BaseConstructor.java:157) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.loadFromReader(Yaml.java:490) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.load(Yaml.java:416) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadFromString(YamlConfiguration.java:57) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:160) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:128) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadConfiguration(YamlConfiguration.java:188) ~[patched_1.16.5.jar:git-Paper-794] at org.by1337.bairdrop.configManager.CConfig.loadConfiguration(CConfig.java:130) ~[?:?] at org.by1337.bairdrop.BAirDrop.onEnable(BAirDrop.java:88) ~[?:?] at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:263) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:370) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:500) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugin(CraftServer.java:518) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugins(CraftServer.java:432) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.loadWorld(MinecraftServer.java:599) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.DedicatedServer.init(DedicatedServer.java:298) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.w(MinecraftServer.java:1074) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.lambda$a$0(MinecraftServer.java:291) ~[patched_1.16.5.jar:git-Paper-794] at java.lang.Thread.run(Thread.java:831) [?:?] [15:26:51] [Server thread/ERROR]: [org.bukkit.configuration.serialization.ConfigurationSerialization] Could not call method 'public static org.bukkit.inventory.ItemStack org.bukkit.inventory.ItemStack.deserialize(java.util.Map)' of class org.bukkit.inventory.ItemStack for deserialization java.lang.IllegalArgumentException: Newer version! Server downgrades are not supported! at com.google.common.base.Preconditions.checkArgument(Preconditions.java:122) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.util.CraftMagicNumbers.getMaterial(CraftMagicNumbers.java:245) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.inventory.ItemStack.deserialize(ItemStack.java:504) ~[patched_1.16.5.jar:git-Paper-794] at jdk.internal.reflect.GeneratedMethodAccessor23.invoke(Unknown Source) ~[?:?] at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?] at java.lang.reflect.Method.invoke(Method.java:567) ~[?:?] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeViaMethod(ConfigurationSerialization.java:85) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserialize(ConfigurationSerialization.java:127) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeObject(ConfigurationSerialization.java:207) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:37) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructDocument(BaseConstructor.java:173) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.getSingleData(BaseConstructor.java:157) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.loadFromReader(Yaml.java:490) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.load(Yaml.java:416) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadFromString(YamlConfiguration.java:57) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:160) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:128) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadConfiguration(YamlConfiguration.java:188) ~[patched_1.16.5.jar:git-Paper-794] at org.by1337.bairdrop.configManager.CConfig.loadConfiguration(CConfig.java:130) ~[?:?] at org.by1337.bairdrop.BAirDrop.onEnable(BAirDrop.java:88) ~[?:?] at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:263) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:370) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:500) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugin(CraftServer.java:518) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugins(CraftServer.java:432) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.loadWorld(MinecraftServer.java:599) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.DedicatedServer.init(DedicatedServer.java:298) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.w(MinecraftServer.java:1074) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.lambda$a$0(MinecraftServer.java:291) ~[patched_1.16.5.jar:git-Paper-794] at java.lang.Thread.run(Thread.java:831) [?:?] [15:26:51] [Server thread/ERROR]: [org.bukkit.configuration.serialization.ConfigurationSerialization] Could not call method 'public static org.bukkit.inventory.ItemStack org.bukkit.inventory.ItemStack.deserialize(java.util.Map)' of class org.bukkit.inventory.ItemStack for deserialization java.lang.IllegalArgumentException: Newer version! Server downgrades are not supported! at com.google.common.base.Preconditions.checkArgument(Preconditions.java:122) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.util.CraftMagicNumbers.getMaterial(CraftMagicNumbers.java:245) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.inventory.ItemStack.deserialize(ItemStack.java:504) ~[patched_1.16.5.jar:git-Paper-794] at jdk.internal.reflect.GeneratedMethodAccessor23.invoke(Unknown Source) ~[?:?] at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?] at java.lang.reflect.Method.invoke(Method.java:567) ~[?:?] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeViaMethod(ConfigurationSerialization.java:85) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserialize(ConfigurationSerialization.java:127) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeObject(ConfigurationSerialization.java:207) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:37) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructDocument(BaseConstructor.java:173) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.getSingleData(BaseConstructor.java:157) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.loadFromReader(Yaml.java:490) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.load(Yaml.java:416) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadFromString(YamlConfiguration.java:57) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:160) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:128) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadConfiguration(YamlConfiguration.java:188) ~[patched_1.16.5.jar:git-Paper-794] at org.by1337.bairdrop.configManager.CConfig.loadConfiguration(CConfig.java:130) ~[?:?] at org.by1337.bairdrop.BAirDrop.onEnable(BAirDrop.java:88) ~[?:?] at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:263) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:370) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:500) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugin(CraftServer.java:518) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugins(CraftServer.java:432) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.loadWorld(MinecraftServer.java:599) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.DedicatedServer.init(DedicatedServer.java:298) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.w(MinecraftServer.java:1074) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.lambda$a$0(MinecraftServer.java:291) ~[patched_1.16.5.jar:git-Paper-794] at java.lang.Thread.run(Thread.java:831) [?:?] [15:26:51] [Server thread/ERROR]: [org.bukkit.configuration.serialization.ConfigurationSerialization] Could not call method 'public static org.bukkit.inventory.ItemStack org.bukkit.inventory.ItemStack.deserialize(java.util.Map)' of class org.bukkit.inventory.ItemStack for deserialization java.lang.IllegalArgumentException: Newer version! Server downgrades are not supported! at com.google.common.base.Preconditions.checkArgument(Preconditions.java:122) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.util.CraftMagicNumbers.getMaterial(CraftMagicNumbers.java:245) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.inventory.ItemStack.deserialize(ItemStack.java:504) ~[patched_1.16.5.jar:git-Paper-794] at jdk.internal.reflect.GeneratedMethodAccessor23.invoke(Unknown Source) ~[?:?] at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?] at java.lang.reflect.Method.invoke(Method.java:567) ~[?:?] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeViaMethod(ConfigurationSerialization.java:85) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserialize(ConfigurationSerialization.java:127) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeObject(ConfigurationSerialization.java:207) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:37) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructDocument(BaseConstructor.java:173) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.getSingleData(BaseConstructor.java:157) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.loadFromReader(Yaml.java:490) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.load(Yaml.java:416) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadFromString(YamlConfiguration.java:57) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:160) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:128) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadConfiguration(YamlConfiguration.java:188) ~[patched_1.16.5.jar:git-Paper-794] at org.by1337.bairdrop.configManager.CConfig.loadConfiguration(CConfig.java:130) ~[?:?] at org.by1337.bairdrop.BAirDrop.onEnable(BAirDrop.java:88) ~[?:?] at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:263) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:370) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:500) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugin(CraftServer.java:518) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugins(CraftServer.java:432) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.loadWorld(MinecraftServer.java:599) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.DedicatedServer.init(DedicatedServer.java:298) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.w(MinecraftServer.java:1074) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.lambda$a$0(MinecraftServer.java:291) ~[patched_1.16.5.jar:git-Paper-794] at java.lang.Thread.run(Thread.java:831) [?:?] [15:26:51] [Server thread/ERROR]: [org.bukkit.configuration.serialization.ConfigurationSerialization] Could not call method 'public static org.bukkit.inventory.ItemStack org.bukkit.inventory.ItemStack.deserialize(java.util.Map)' of class org.bukkit.inventory.ItemStack for deserialization java.lang.IllegalArgumentException: Newer version! Server downgrades are not supported! at com.google.common.base.Preconditions.checkArgument(Preconditions.java:122) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.util.CraftMagicNumbers.getMaterial(CraftMagicNumbers.java:245) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.inventory.ItemStack.deserialize(ItemStack.java:504) ~[patched_1.16.5.jar:git-Paper-794] at jdk.internal.reflect.GeneratedMethodAccessor23.invoke(Unknown Source) ~[?:?] at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?] at java.lang.reflect.Method.invoke(Method.java:567) ~[?:?] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeViaMethod(ConfigurationSerialization.java:85) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserialize(ConfigurationSerialization.java:127) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeObject(ConfigurationSerialization.java:207) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:37) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructDocument(BaseConstructor.java:173) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.getSingleData(BaseConstructor.java:157) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.loadFromReader(Yaml.java:490) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.load(Yaml.java:416) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadFromString(YamlConfiguration.java:57) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:160) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:128) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadConfiguration(YamlConfiguration.java:188) ~[patched_1.16.5.jar:git-Paper-794] at org.by1337.bairdrop.configManager.CConfig.loadConfiguration(CConfig.java:130) ~[?:?] at org.by1337.bairdrop.BAirDrop.onEnable(BAirDrop.java:88) ~[?:?] at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:263) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:370) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:500) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugin(CraftServer.java:518) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugins(CraftServer.java:432) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.loadWorld(MinecraftServer.java:599) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.DedicatedServer.init(DedicatedServer.java:298) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.w(MinecraftServer.java:1074) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.lambda$a$0(MinecraftServer.java:291) ~[patched_1.16.5.jar:git-Paper-794] at java.lang.Thread.run(Thread.java:831) [?:?] [15:26:51] [Server thread/ERROR]: [org.bukkit.configuration.serialization.ConfigurationSerialization] Could not call method 'public static org.bukkit.inventory.ItemStack org.bukkit.inventory.ItemStack.deserialize(java.util.Map)' of class org.bukkit.inventory.ItemStack for deserialization java.lang.IllegalArgumentException: Newer version! Server downgrades are not supported! at com.google.common.base.Preconditions.checkArgument(Preconditions.java:122) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.util.CraftMagicNumbers.getMaterial(CraftMagicNumbers.java:245) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.inventory.ItemStack.deserialize(ItemStack.java:504) ~[patched_1.16.5.jar:git-Paper-794] at jdk.internal.reflect.GeneratedMethodAccessor23.invoke(Unknown Source) ~[?:?] at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?] at java.lang.reflect.Method.invoke(Method.java:567) ~[?:?] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeViaMethod(ConfigurationSerialization.java:85) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserialize(ConfigurationSerialization.java:127) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeObject(ConfigurationSerialization.java:207) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:37) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructDocument(BaseConstructor.java:173) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.getSingleData(BaseConstructor.java:157) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.loadFromReader(Yaml.java:490) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.load(Yaml.java:416) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadFromString(YamlConfiguration.java:57) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:160) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:128) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadConfiguration(YamlConfiguration.java:188) ~[patched_1.16.5.jar:git-Paper-794] at org.by1337.bairdrop.configManager.CConfig.loadConfiguration(CConfig.java:130) ~[?:?] at org.by1337.bairdrop.BAirDrop.onEnable(BAirDrop.java:88) ~[?:?] at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:263) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:370) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:500) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugin(CraftServer.java:518) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugins(CraftServer.java:432) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.loadWorld(MinecraftServer.java:599) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.DedicatedServer.init(DedicatedServer.java:298) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.w(MinecraftServer.java:1074) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.lambda$a$0(MinecraftServer.java:291) ~[patched_1.16.5.jar:git-Paper-794] at java.lang.Thread.run(Thread.java:831) [?:?] [15:26:51] [Server thread/ERROR]: [org.bukkit.configuration.serialization.ConfigurationSerialization] Could not call method 'public static org.bukkit.inventory.ItemStack org.bukkit.inventory.ItemStack.deserialize(java.util.Map)' of class org.bukkit.inventory.ItemStack for deserialization java.lang.IllegalArgumentException: Newer version! Server downgrades are not supported! at com.google.common.base.Preconditions.checkArgument(Preconditions.java:122) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.util.CraftMagicNumbers.getMaterial(CraftMagicNumbers.java:245) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.inventory.ItemStack.deserialize(ItemStack.java:504) ~[patched_1.16.5.jar:git-Paper-794] at jdk.internal.reflect.GeneratedMethodAccessor23.invoke(Unknown Source) ~[?:?] at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?] at java.lang.reflect.Method.invoke(Method.java:567) ~[?:?] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeViaMethod(ConfigurationSerialization.java:85) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserialize(ConfigurationSerialization.java:127) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeObject(ConfigurationSerialization.java:207) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:37) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructDocument(BaseConstructor.java:173) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.getSingleData(BaseConstructor.java:157) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.loadFromReader(Yaml.java:490) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.load(Yaml.java:416) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadFromString(YamlConfiguration.java:57) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:160) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:128) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadConfiguration(YamlConfiguration.java:188) ~[patched_1.16.5.jar:git-Paper-794] at org.by1337.bairdrop.configManager.CConfig.loadConfiguration(CConfig.java:130) ~[?:?] at org.by1337.bairdrop.BAirDrop.onEnable(BAirDrop.java:88) ~[?:?] at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:263) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:370) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:500) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugin(CraftServer.java:518) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugins(CraftServer.java:432) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.loadWorld(MinecraftServer.java:599) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.DedicatedServer.init(DedicatedServer.java:298) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.w(MinecraftServer.java:1074) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.lambda$a$0(MinecraftServer.java:291) ~[patched_1.16.5.jar:git-Paper-794] at java.lang.Thread.run(Thread.java:831) [?:?] [15:26:51] [Server thread/ERROR]: [org.bukkit.configuration.serialization.ConfigurationSerialization] Could not call method 'public static org.bukkit.inventory.ItemStack org.bukkit.inventory.ItemStack.deserialize(java.util.Map)' of class org.bukkit.inventory.ItemStack for deserialization java.lang.IllegalArgumentException: Newer version! Server downgrades are not supported! at com.google.common.base.Preconditions.checkArgument(Preconditions.java:122) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.util.CraftMagicNumbers.getMaterial(CraftMagicNumbers.java:245) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.inventory.ItemStack.deserialize(ItemStack.java:504) ~[patched_1.16.5.jar:git-Paper-794] at jdk.internal.reflect.GeneratedMethodAccessor23.invoke(Unknown Source) ~[?:?] at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?] at java.lang.reflect.Method.invoke(Method.java:567) ~[?:?] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeViaMethod(ConfigurationSerialization.java:85) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserialize(ConfigurationSerialization.java:127) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeObject(ConfigurationSerialization.java:207) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:37) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructDocument(BaseConstructor.java:173) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.getSingleData(BaseConstructor.java:157) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.loadFromReader(Yaml.java:490) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.load(Yaml.java:416) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadFromString(YamlConfiguration.java:57) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:160) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:128) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadConfiguration(YamlConfiguration.java:188) ~[patched_1.16.5.jar:git-Paper-794] at org.by1337.bairdrop.configManager.CConfig.loadConfiguration(CConfig.java:130) ~[?:?] at org.by1337.bairdrop.BAirDrop.onEnable(BAirDrop.java:88) ~[?:?] at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:263) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:370) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:500) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugin(CraftServer.java:518) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugins(CraftServer.java:432) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.loadWorld(MinecraftServer.java:599) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.DedicatedServer.init(DedicatedServer.java:298) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.w(MinecraftServer.java:1074) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.lambda$a$0(MinecraftServer.java:291) ~[patched_1.16.5.jar:git-Paper-794] at java.lang.Thread.run(Thread.java:831) [?:?] [15:26:51] [Server thread/ERROR]: [org.bukkit.configuration.serialization.ConfigurationSerialization] Could not call method 'public static org.bukkit.inventory.ItemStack org.bukkit.inventory.ItemStack.deserialize(java.util.Map)' of class org.bukkit.inventory.ItemStack for deserialization java.lang.IllegalArgumentException: Newer version! Server downgrades are not supported! at com.google.common.base.Preconditions.checkArgument(Preconditions.java:122) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.util.CraftMagicNumbers.getMaterial(CraftMagicNumbers.java:245) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.inventory.ItemStack.deserialize(ItemStack.java:504) ~[patched_1.16.5.jar:git-Paper-794] at jdk.internal.reflect.GeneratedMethodAccessor23.invoke(Unknown Source) ~[?:?] at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?] at java.lang.reflect.Method.invoke(Method.java:567) ~[?:?] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeViaMethod(ConfigurationSerialization.java:85) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserialize(ConfigurationSerialization.java:127) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeObject(ConfigurationSerialization.java:207) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:37) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructDocument(BaseConstructor.java:173) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.getSingleData(BaseConstructor.java:157) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.loadFromReader(Yaml.java:490) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.load(Yaml.java:416) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadFromString(YamlConfiguration.java:57) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:160) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:128) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadConfiguration(YamlConfiguration.java:188) ~[patched_1.16.5.jar:git-Paper-794] at org.by1337.bairdrop.configManager.CConfig.loadConfiguration(CConfig.java:130) ~[?:?] at org.by1337.bairdrop.BAirDrop.onEnable(BAirDrop.java:88) ~[?:?] at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:263) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:370) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:500) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugin(CraftServer.java:518) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugins(CraftServer.java:432) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.loadWorld(MinecraftServer.java:599) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.DedicatedServer.init(DedicatedServer.java:298) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.w(MinecraftServer.java:1074) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.lambda$a$0(MinecraftServer.java:291) ~[patched_1.16.5.jar:git-Paper-794] at java.lang.Thread.run(Thread.java:831) [?:?] [15:26:51] [Server thread/ERROR]: [org.bukkit.configuration.serialization.ConfigurationSerialization] Could not call method 'public static org.bukkit.inventory.ItemStack org.bukkit.inventory.ItemStack.deserialize(java.util.Map)' of class org.bukkit.inventory.ItemStack for deserialization java.lang.IllegalArgumentException: Newer version! Server downgrades are not supported! at com.google.common.base.Preconditions.checkArgument(Preconditions.java:122) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.util.CraftMagicNumbers.getMaterial(CraftMagicNumbers.java:245) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.inventory.ItemStack.deserialize(ItemStack.java:504) ~[patched_1.16.5.jar:git-Paper-794] at jdk.internal.reflect.GeneratedMethodAccessor23.invoke(Unknown Source) ~[?:?] at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?] at java.lang.reflect.Method.invoke(Method.java:567) ~[?:?] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeViaMethod(ConfigurationSerialization.java:85) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserialize(ConfigurationSerialization.java:127) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeObject(ConfigurationSerialization.java:207) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:37) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructDocument(BaseConstructor.java:173) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.getSingleData(BaseConstructor.java:157) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.loadFromReader(Yaml.java:490) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.load(Yaml.java:416) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadFromString(YamlConfiguration.java:57) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:160) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:128) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadConfiguration(YamlConfiguration.java:188) ~[patched_1.16.5.jar:git-Paper-794] at org.by1337.bairdrop.configManager.CConfig.loadConfiguration(CConfig.java:130) ~[?:?] at org.by1337.bairdrop.BAirDrop.onEnable(BAirDrop.java:88) ~[?:?] at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:263) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:370) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:500) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugin(CraftServer.java:518) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugins(CraftServer.java:432) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.loadWorld(MinecraftServer.java:599) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.DedicatedServer.init(DedicatedServer.java:298) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.w(MinecraftServer.java:1074) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.lambda$a$0(MinecraftServer.java:291) ~[patched_1.16.5.jar:git-Paper-794] at java.lang.Thread.run(Thread.java:831) [?:?] [15:26:51] [Server thread/ERROR]: [org.bukkit.configuration.serialization.ConfigurationSerialization] Could not call method 'public static org.bukkit.inventory.ItemStack org.bukkit.inventory.ItemStack.deserialize(java.util.Map)' of class org.bukkit.inventory.ItemStack for deserialization java.lang.IllegalArgumentException: Newer version! Server downgrades are not supported! at com.google.common.base.Preconditions.checkArgument(Preconditions.java:122) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.util.CraftMagicNumbers.getMaterial(CraftMagicNumbers.java:245) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.inventory.ItemStack.deserialize(ItemStack.java:504) ~[patched_1.16.5.jar:git-Paper-794] at jdk.internal.reflect.GeneratedMethodAccessor23.invoke(Unknown Source) ~[?:?] at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?] at java.lang.reflect.Method.invoke(Method.java:567) ~[?:?] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeViaMethod(ConfigurationSerialization.java:85) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserialize(ConfigurationSerialization.java:127) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeObject(ConfigurationSerialization.java:207) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:37) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructDocument(BaseConstructor.java:173) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.getSingleData(BaseConstructor.java:157) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.loadFromReader(Yaml.java:490) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.load(Yaml.java:416) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadFromString(YamlConfiguration.java:57) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:160) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:128) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadConfiguration(YamlConfiguration.java:188) ~[patched_1.16.5.jar:git-Paper-794] at org.by1337.bairdrop.configManager.CConfig.loadConfiguration(CConfig.java:130) ~[?:?] at org.by1337.bairdrop.BAirDrop.onEnable(BAirDrop.java:88) ~[?:?] at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:263) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:370) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:500) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugin(CraftServer.java:518) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugins(CraftServer.java:432) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.loadWorld(MinecraftServer.java:599) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.DedicatedServer.init(DedicatedServer.java:298) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.w(MinecraftServer.java:1074) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.lambda$a$0(MinecraftServer.java:291) ~[patched_1.16.5.jar:git-Paper-794] at java.lang.Thread.run(Thread.java:831) [?:?] [15:26:51] [Server thread/ERROR]: [org.bukkit.configuration.serialization.ConfigurationSerialization] Could not call method 'public static org.bukkit.inventory.ItemStack org.bukkit.inventory.ItemStack.deserialize(java.util.Map)' of class org.bukkit.inventory.ItemStack for deserialization java.lang.IllegalArgumentException: Newer version! Server downgrades are not supported! at com.google.common.base.Preconditions.checkArgument(Preconditions.java:122) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.util.CraftMagicNumbers.getMaterial(CraftMagicNumbers.java:245) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.inventory.ItemStack.deserialize(ItemStack.java:504) ~[patched_1.16.5.jar:git-Paper-794] at jdk.internal.reflect.GeneratedMethodAccessor23.invoke(Unknown Source) ~[?:?] at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?] at java.lang.reflect.Method.invoke(Method.java:567) ~[?:?] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeViaMethod(ConfigurationSerialization.java:85) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserialize(ConfigurationSerialization.java:127) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeObject(ConfigurationSerialization.java:207) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:37) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructDocument(BaseConstructor.java:173) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.getSingleData(BaseConstructor.java:157) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.loadFromReader(Yaml.java:490) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.load(Yaml.java:416) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadFromString(YamlConfiguration.java:57) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:160) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:128) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadConfiguration(YamlConfiguration.java:188) ~[patched_1.16.5.jar:git-Paper-794] at org.by1337.bairdrop.configManager.CConfig.loadConfiguration(CConfig.java:130) ~[?:?] at org.by1337.bairdrop.BAirDrop.onEnable(BAirDrop.java:88) ~[?:?] at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:263) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:370) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:500) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugin(CraftServer.java:518) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugins(CraftServer.java:432) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.loadWorld(MinecraftServer.java:599) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.DedicatedServer.init(DedicatedServer.java:298) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.w(MinecraftServer.java:1074) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.lambda$a$0(MinecraftServer.java:291) ~[patched_1.16.5.jar:git-Paper-794] at java.lang.Thread.run(Thread.java:831) [?:?] [15:26:51] [Server thread/ERROR]: [org.bukkit.configuration.serialization.ConfigurationSerialization] Could not call method 'public static org.bukkit.inventory.ItemStack org.bukkit.inventory.ItemStack.deserialize(java.util.Map)' of class org.bukkit.inventory.ItemStack for deserialization java.lang.IllegalArgumentException: Newer version! Server downgrades are not supported! at com.google.common.base.Preconditions.checkArgument(Preconditions.java:122) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.util.CraftMagicNumbers.getMaterial(CraftMagicNumbers.java:245) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.inventory.ItemStack.deserialize(ItemStack.java:504) ~[patched_1.16.5.jar:git-Paper-794] at jdk.internal.reflect.GeneratedMethodAccessor23.invoke(Unknown Source) ~[?:?] at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?] at java.lang.reflect.Method.invoke(Method.java:567) ~[?:?] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeViaMethod(ConfigurationSerialization.java:85) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserialize(ConfigurationSerialization.java:127) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeObject(ConfigurationSerialization.java:207) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:37) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructDocument(BaseConstructor.java:173) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.getSingleData(BaseConstructor.java:157) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.loadFromReader(Yaml.java:490) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.load(Yaml.java:416) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadFromString(YamlConfiguration.java:57) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:160) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:128) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadConfiguration(YamlConfiguration.java:188) ~[patched_1.16.5.jar:git-Paper-794] at org.by1337.bairdrop.configManager.CConfig.loadConfiguration(CConfig.java:130) ~[?:?] at org.by1337.bairdrop.BAirDrop.onEnable(BAirDrop.java:88) ~[?:?] at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:263) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:370) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:500) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugin(CraftServer.java:518) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugins(CraftServer.java:432) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.loadWorld(MinecraftServer.java:599) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.DedicatedServer.init(DedicatedServer.java:298) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.w(MinecraftServer.java:1074) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.lambda$a$0(MinecraftServer.java:291) ~[patched_1.16.5.jar:git-Paper-794] at java.lang.Thread.run(Thread.java:831) [?:?] [15:26:51] [Server thread/ERROR]: [org.bukkit.configuration.serialization.ConfigurationSerialization] Could not call method 'public static org.bukkit.inventory.ItemStack org.bukkit.inventory.ItemStack.deserialize(java.util.Map)' of class org.bukkit.inventory.ItemStack for deserialization java.lang.IllegalArgumentException: Newer version! Server downgrades are not supported! at com.google.common.base.Preconditions.checkArgument(Preconditions.java:122) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.util.CraftMagicNumbers.getMaterial(CraftMagicNumbers.java:245) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.inventory.ItemStack.deserialize(ItemStack.java:504) ~[patched_1.16.5.jar:git-Paper-794] at jdk.internal.reflect.GeneratedMethodAccessor23.invoke(Unknown Source) ~[?:?] at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?] at java.lang.reflect.Method.invoke(Method.java:567) ~[?:?] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeViaMethod(ConfigurationSerialization.java:85) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserialize(ConfigurationSerialization.java:127) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeObject(ConfigurationSerialization.java:207) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:37) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructDocument(BaseConstructor.java:173) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.getSingleData(BaseConstructor.java:157) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.loadFromReader(Yaml.java:490) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.load(Yaml.java:416) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadFromString(YamlConfiguration.java:57) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:160) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:128) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadConfiguration(YamlConfiguration.java:188) ~[patched_1.16.5.jar:git-Paper-794] at org.by1337.bairdrop.configManager.CConfig.loadConfiguration(CConfig.java:130) ~[?:?] at org.by1337.bairdrop.BAirDrop.onEnable(BAirDrop.java:88) ~[?:?] at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:263) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:370) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:500) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugin(CraftServer.java:518) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugins(CraftServer.java:432) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.loadWorld(MinecraftServer.java:599) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.DedicatedServer.init(DedicatedServer.java:298) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.w(MinecraftServer.java:1074) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.lambda$a$0(MinecraftServer.java:291) ~[patched_1.16.5.jar:git-Paper-794] at java.lang.Thread.run(Thread.java:831) [?:?] [15:26:51] [Server thread/ERROR]: [org.bukkit.configuration.serialization.ConfigurationSerialization] Could not call method 'public static org.bukkit.inventory.ItemStack org.bukkit.inventory.ItemStack.deserialize(java.util.Map)' of class org.bukkit.inventory.ItemStack for deserialization java.lang.IllegalArgumentException: Newer version! Server downgrades are not supported! at com.google.common.base.Preconditions.checkArgument(Preconditions.java:122) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.util.CraftMagicNumbers.getMaterial(CraftMagicNumbers.java:245) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.inventory.ItemStack.deserialize(ItemStack.java:504) ~[patched_1.16.5.jar:git-Paper-794] at jdk.internal.reflect.GeneratedMethodAccessor23.invoke(Unknown Source) ~[?:?] at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?] at java.lang.reflect.Method.invoke(Method.java:567) ~[?:?] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeViaMethod(ConfigurationSerialization.java:85) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserialize(ConfigurationSerialization.java:127) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeObject(ConfigurationSerialization.java:207) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:37) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructDocument(BaseConstructor.java:173) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.getSingleData(BaseConstructor.java:157) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.loadFromReader(Yaml.java:490) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.load(Yaml.java:416) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadFromString(YamlConfiguration.java:57) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:160) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:128) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadConfiguration(YamlConfiguration.java:188) ~[patched_1.16.5.jar:git-Paper-794] at org.by1337.bairdrop.configManager.CConfig.loadConfiguration(CConfig.java:130) ~[?:?] at org.by1337.bairdrop.BAirDrop.onEnable(BAirDrop.java:88) ~[?:?] at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:263) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:370) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:500) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugin(CraftServer.java:518) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugins(CraftServer.java:432) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.loadWorld(MinecraftServer.java:599) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.DedicatedServer.init(DedicatedServer.java:298) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.w(MinecraftServer.java:1074) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.lambda$a$0(MinecraftServer.java:291) ~[patched_1.16.5.jar:git-Paper-794] at java.lang.Thread.run(Thread.java:831) [?:?] [15:26:51] [Server thread/ERROR]: [org.bukkit.configuration.serialization.ConfigurationSerialization] Could not call method 'public static org.bukkit.inventory.ItemStack org.bukkit.inventory.ItemStack.deserialize(java.util.Map)' of class org.bukkit.inventory.ItemStack for deserialization java.lang.IllegalArgumentException: Newer version! Server downgrades are not supported! at com.google.common.base.Preconditions.checkArgument(Preconditions.java:122) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.util.CraftMagicNumbers.getMaterial(CraftMagicNumbers.java:245) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.inventory.ItemStack.deserialize(ItemStack.java:504) ~[patched_1.16.5.jar:git-Paper-794] at jdk.internal.reflect.GeneratedMethodAccessor23.invoke(Unknown Source) ~[?:?] at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?] at java.lang.reflect.Method.invoke(Method.java:567) ~[?:?] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeViaMethod(ConfigurationSerialization.java:85) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserialize(ConfigurationSerialization.java:127) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeObject(ConfigurationSerialization.java:207) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:37) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructDocument(BaseConstructor.java:173) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.getSingleData(BaseConstructor.java:157) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.loadFromReader(Yaml.java:490) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.load(Yaml.java:416) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadFromString(YamlConfiguration.java:57) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:160) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:128) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadConfiguration(YamlConfiguration.java:188) ~[patched_1.16.5.jar:git-Paper-794] at org.by1337.bairdrop.configManager.CConfig.loadConfiguration(CConfig.java:130) ~[?:?] at org.by1337.bairdrop.BAirDrop.onEnable(BAirDrop.java:88) ~[?:?] at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:263) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:370) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:500) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugin(CraftServer.java:518) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugins(CraftServer.java:432) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.loadWorld(MinecraftServer.java:599) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.DedicatedServer.init(DedicatedServer.java:298) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.w(MinecraftServer.java:1074) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.lambda$a$0(MinecraftServer.java:291) ~[patched_1.16.5.jar:git-Paper-794] at java.lang.Thread.run(Thread.java:831) [?:?] [15:26:51] [Server thread/ERROR]: [org.bukkit.configuration.serialization.ConfigurationSerialization] Could not call method 'public static org.bukkit.inventory.ItemStack org.bukkit.inventory.ItemStack.deserialize(java.util.Map)' of class org.bukkit.inventory.ItemStack for deserialization java.lang.IllegalArgumentException: Newer version! Server downgrades are not supported! at com.google.common.base.Preconditions.checkArgument(Preconditions.java:122) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.util.CraftMagicNumbers.getMaterial(CraftMagicNumbers.java:245) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.inventory.ItemStack.deserialize(ItemStack.java:504) ~[patched_1.16.5.jar:git-Paper-794] at jdk.internal.reflect.GeneratedMethodAccessor23.invoke(Unknown Source) ~[?:?] at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?] at java.lang.reflect.Method.invoke(Method.java:567) ~[?:?] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeViaMethod(ConfigurationSerialization.java:85) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserialize(ConfigurationSerialization.java:127) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeObject(ConfigurationSerialization.java:207) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:37) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructDocument(BaseConstructor.java:173) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.getSingleData(BaseConstructor.java:157) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.loadFromReader(Yaml.java:490) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.load(Yaml.java:416) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadFromString(YamlConfiguration.java:57) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:160) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:128) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadConfiguration(YamlConfiguration.java:188) ~[patched_1.16.5.jar:git-Paper-794] at org.by1337.bairdrop.configManager.CConfig.loadConfiguration(CConfig.java:130) ~[?:?] at org.by1337.bairdrop.BAirDrop.onEnable(BAirDrop.java:88) ~[?:?] at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:263) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:370) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:500) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugin(CraftServer.java:518) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugins(CraftServer.java:432) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.loadWorld(MinecraftServer.java:599) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.DedicatedServer.init(DedicatedServer.java:298) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.w(MinecraftServer.java:1074) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.lambda$a$0(MinecraftServer.java:291) ~[patched_1.16.5.jar:git-Paper-794] at java.lang.Thread.run(Thread.java:831) [?:?] [15:26:51] [Server thread/ERROR]: [org.bukkit.configuration.serialization.ConfigurationSerialization] Could not call method 'public static org.bukkit.inventory.ItemStack org.bukkit.inventory.ItemStack.deserialize(java.util.Map)' of class org.bukkit.inventory.ItemStack for deserialization java.lang.IllegalArgumentException: Newer version! Server downgrades are not supported! at com.google.common.base.Preconditions.checkArgument(Preconditions.java:122) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.util.CraftMagicNumbers.getMaterial(CraftMagicNumbers.java:245) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.inventory.ItemStack.deserialize(ItemStack.java:504) ~[patched_1.16.5.jar:git-Paper-794] at jdk.internal.reflect.GeneratedMethodAccessor23.invoke(Unknown Source) ~[?:?] at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?] at java.lang.reflect.Method.invoke(Method.java:567) ~[?:?] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeViaMethod(ConfigurationSerialization.java:85) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserialize(ConfigurationSerialization.java:127) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeObject(ConfigurationSerialization.java:207) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:37) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructDocument(BaseConstructor.java:173) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.getSingleData(BaseConstructor.java:157) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.loadFromReader(Yaml.java:490) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.load(Yaml.java:416) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadFromString(YamlConfiguration.java:57) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:160) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:128) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadConfiguration(YamlConfiguration.java:188) ~[patched_1.16.5.jar:git-Paper-794] at org.by1337.bairdrop.configManager.CConfig.loadConfiguration(CConfig.java:130) ~[?:?] at org.by1337.bairdrop.BAirDrop.onEnable(BAirDrop.java:88) ~[?:?] at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:263) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:370) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:500) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugin(CraftServer.java:518) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugins(CraftServer.java:432) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.loadWorld(MinecraftServer.java:599) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.DedicatedServer.init(DedicatedServer.java:298) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.w(MinecraftServer.java:1074) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.lambda$a$0(MinecraftServer.java:291) ~[patched_1.16.5.jar:git-Paper-794] at java.lang.Thread.run(Thread.java:831) [?:?] [15:26:51] [Server thread/ERROR]: [org.bukkit.configuration.serialization.ConfigurationSerialization] Could not call method 'public static org.bukkit.inventory.ItemStack org.bukkit.inventory.ItemStack.deserialize(java.util.Map)' of class org.bukkit.inventory.ItemStack for deserialization java.lang.IllegalArgumentException: Newer version! Server downgrades are not supported! at com.google.common.base.Preconditions.checkArgument(Preconditions.java:122) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.util.CraftMagicNumbers.getMaterial(CraftMagicNumbers.java:245) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.inventory.ItemStack.deserialize(ItemStack.java:504) ~[patched_1.16.5.jar:git-Paper-794] at jdk.internal.reflect.GeneratedMethodAccessor23.invoke(Unknown Source) ~[?:?] at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?] at java.lang.reflect.Method.invoke(Method.java:567) ~[?:?] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeViaMethod(ConfigurationSerialization.java:85) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserialize(ConfigurationSerialization.java:127) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeObject(ConfigurationSerialization.java:207) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:37) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructDocument(BaseConstructor.java:173) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.getSingleData(BaseConstructor.java:157) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.loadFromReader(Yaml.java:490) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.load(Yaml.java:416) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadFromString(YamlConfiguration.java:57) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:160) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:128) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadConfiguration(YamlConfiguration.java:188) ~[patched_1.16.5.jar:git-Paper-794] at org.by1337.bairdrop.configManager.CConfig.loadConfiguration(CConfig.java:130) ~[?:?] at org.by1337.bairdrop.BAirDrop.onEnable(BAirDrop.java:88) ~[?:?] at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:263) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:370) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:500) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugin(CraftServer.java:518) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugins(CraftServer.java:432) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.loadWorld(MinecraftServer.java:599) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.DedicatedServer.init(DedicatedServer.java:298) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.w(MinecraftServer.java:1074) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.lambda$a$0(MinecraftServer.java:291) ~[patched_1.16.5.jar:git-Paper-794] at java.lang.Thread.run(Thread.java:831) [?:?] [15:26:51] [Server thread/ERROR]: [org.bukkit.configuration.serialization.ConfigurationSerialization] Could not call method 'public static org.bukkit.inventory.ItemStack org.bukkit.inventory.ItemStack.deserialize(java.util.Map)' of class org.bukkit.inventory.ItemStack for deserialization java.lang.IllegalArgumentException: Newer version! Server downgrades are not supported! at com.google.common.base.Preconditions.checkArgument(Preconditions.java:122) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.util.CraftMagicNumbers.getMaterial(CraftMagicNumbers.java:245) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.inventory.ItemStack.deserialize(ItemStack.java:504) ~[patched_1.16.5.jar:git-Paper-794] at jdk.internal.reflect.GeneratedMethodAccessor23.invoke(Unknown Source) ~[?:?] at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?] at java.lang.reflect.Method.invoke(Method.java:567) ~[?:?] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeViaMethod(ConfigurationSerialization.java:85) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserialize(ConfigurationSerialization.java:127) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeObject(ConfigurationSerialization.java:207) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:37) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructDocument(BaseConstructor.java:173) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.getSingleData(BaseConstructor.java:157) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.loadFromReader(Yaml.java:490) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.load(Yaml.java:416) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadFromString(YamlConfiguration.java:57) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:160) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:128) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadConfiguration(YamlConfiguration.java:188) ~[patched_1.16.5.jar:git-Paper-794] at org.by1337.bairdrop.configManager.CConfig.loadConfiguration(CConfig.java:130) ~[?:?] at org.by1337.bairdrop.BAirDrop.onEnable(BAirDrop.java:88) ~[?:?] at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:263) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:370) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:500) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugin(CraftServer.java:518) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugins(CraftServer.java:432) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.loadWorld(MinecraftServer.java:599) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.DedicatedServer.init(DedicatedServer.java:298) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.w(MinecraftServer.java:1074) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.lambda$a$0(MinecraftServer.java:291) ~[patched_1.16.5.jar:git-Paper-794] at java.lang.Thread.run(Thread.java:831) [?:?] [15:26:51] [Server thread/ERROR]: [org.bukkit.configuration.serialization.ConfigurationSerialization] Could not call method 'public static org.bukkit.inventory.ItemStack org.bukkit.inventory.ItemStack.deserialize(java.util.Map)' of class org.bukkit.inventory.ItemStack for deserialization java.lang.IllegalArgumentException: Newer version! Server downgrades are not supported! at com.google.common.base.Preconditions.checkArgument(Preconditions.java:122) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.util.CraftMagicNumbers.getMaterial(CraftMagicNumbers.java:245) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.inventory.ItemStack.deserialize(ItemStack.java:504) ~[patched_1.16.5.jar:git-Paper-794] at jdk.internal.reflect.GeneratedMethodAccessor23.invoke(Unknown Source) ~[?:?] at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?] at java.lang.reflect.Method.invoke(Method.java:567) ~[?:?] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeViaMethod(ConfigurationSerialization.java:85) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserialize(ConfigurationSerialization.java:127) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeObject(ConfigurationSerialization.java:207) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:37) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructDocument(BaseConstructor.java:173) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.getSingleData(BaseConstructor.java:157) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.loadFromReader(Yaml.java:490) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.load(Yaml.java:416) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadFromString(YamlConfiguration.java:57) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:160) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:128) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadConfiguration(YamlConfiguration.java:188) ~[patched_1.16.5.jar:git-Paper-794] at org.by1337.bairdrop.configManager.CConfig.loadConfiguration(CConfig.java:130) ~[?:?] at org.by1337.bairdrop.BAirDrop.onEnable(BAirDrop.java:88) ~[?:?] at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:263) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:370) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:500) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugin(CraftServer.java:518) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugins(CraftServer.java:432) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.loadWorld(MinecraftServer.java:599) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.DedicatedServer.init(DedicatedServer.java:298) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.w(MinecraftServer.java:1074) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.lambda$a$0(MinecraftServer.java:291) ~[patched_1.16.5.jar:git-Paper-794] at java.lang.Thread.run(Thread.java:831) [?:?] [15:26:51] [Server thread/ERROR]: [org.bukkit.configuration.serialization.ConfigurationSerialization] Could not call method 'public static org.bukkit.inventory.ItemStack org.bukkit.inventory.ItemStack.deserialize(java.util.Map)' of class org.bukkit.inventory.ItemStack for deserialization java.lang.IllegalArgumentException: Newer version! Server downgrades are not supported! at com.google.common.base.Preconditions.checkArgument(Preconditions.java:122) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.util.CraftMagicNumbers.getMaterial(CraftMagicNumbers.java:245) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.inventory.ItemStack.deserialize(ItemStack.java:504) ~[patched_1.16.5.jar:git-Paper-794] at jdk.internal.reflect.GeneratedMethodAccessor23.invoke(Unknown Source) ~[?:?] at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?] at java.lang.reflect.Method.invoke(Method.java:567) ~[?:?] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeViaMethod(ConfigurationSerialization.java:85) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserialize(ConfigurationSerialization.java:127) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeObject(ConfigurationSerialization.java:207) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:37) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructDocument(BaseConstructor.java:173) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.getSingleData(BaseConstructor.java:157) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.loadFromReader(Yaml.java:490) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.load(Yaml.java:416) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadFromString(YamlConfiguration.java:57) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:160) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:128) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadConfiguration(YamlConfiguration.java:188) ~[patched_1.16.5.jar:git-Paper-794] at org.by1337.bairdrop.configManager.CConfig.loadConfiguration(CConfig.java:130) ~[?:?] at org.by1337.bairdrop.BAirDrop.onEnable(BAirDrop.java:88) ~[?:?] at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:263) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:370) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:500) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugin(CraftServer.java:518) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugins(CraftServer.java:432) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.loadWorld(MinecraftServer.java:599) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.DedicatedServer.init(DedicatedServer.java:298) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.w(MinecraftServer.java:1074) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.lambda$a$0(MinecraftServer.java:291) ~[patched_1.16.5.jar:git-Paper-794] at java.lang.Thread.run(Thread.java:831) [?:?] [15:26:51] [Server thread/ERROR]: [org.bukkit.configuration.serialization.ConfigurationSerialization] Could not call method 'public static org.bukkit.inventory.ItemStack org.bukkit.inventory.ItemStack.deserialize(java.util.Map)' of class org.bukkit.inventory.ItemStack for deserialization java.lang.IllegalArgumentException: Newer version! Server downgrades are not supported! at com.google.common.base.Preconditions.checkArgument(Preconditions.java:122) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.util.CraftMagicNumbers.getMaterial(CraftMagicNumbers.java:245) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.inventory.ItemStack.deserialize(ItemStack.java:504) ~[patched_1.16.5.jar:git-Paper-794] at jdk.internal.reflect.GeneratedMethodAccessor23.invoke(Unknown Source) ~[?:?] at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?] at java.lang.reflect.Method.invoke(Method.java:567) ~[?:?] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeViaMethod(ConfigurationSerialization.java:85) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserialize(ConfigurationSerialization.java:127) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeObject(ConfigurationSerialization.java:207) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:37) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructDocument(BaseConstructor.java:173) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.getSingleData(BaseConstructor.java:157) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.loadFromReader(Yaml.java:490) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.load(Yaml.java:416) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadFromString(YamlConfiguration.java:57) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:160) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:128) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadConfiguration(YamlConfiguration.java:188) ~[patched_1.16.5.jar:git-Paper-794] at org.by1337.bairdrop.configManager.CConfig.loadConfiguration(CConfig.java:130) ~[?:?] at org.by1337.bairdrop.BAirDrop.onEnable(BAirDrop.java:88) ~[?:?] at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:263) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:370) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:500) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugin(CraftServer.java:518) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugins(CraftServer.java:432) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.loadWorld(MinecraftServer.java:599) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.DedicatedServer.init(DedicatedServer.java:298) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.w(MinecraftServer.java:1074) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.lambda$a$0(MinecraftServer.java:291) ~[patched_1.16.5.jar:git-Paper-794] at java.lang.Thread.run(Thread.java:831) [?:?] [15:26:51] [Server thread/ERROR]: [org.bukkit.configuration.serialization.ConfigurationSerialization] Could not call method 'public static org.bukkit.inventory.ItemStack org.bukkit.inventory.ItemStack.deserialize(java.util.Map)' of class org.bukkit.inventory.ItemStack for deserialization java.lang.IllegalArgumentException: Newer version! Server downgrades are not supported! at com.google.common.base.Preconditions.checkArgument(Preconditions.java:122) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.util.CraftMagicNumbers.getMaterial(CraftMagicNumbers.java:245) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.inventory.ItemStack.deserialize(ItemStack.java:504) ~[patched_1.16.5.jar:git-Paper-794] at jdk.internal.reflect.GeneratedMethodAccessor23.invoke(Unknown Source) ~[?:?] at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?] at java.lang.reflect.Method.invoke(Method.java:567) ~[?:?] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeViaMethod(ConfigurationSerialization.java:85) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserialize(ConfigurationSerialization.java:127) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeObject(ConfigurationSerialization.java:207) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:37) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructDocument(BaseConstructor.java:173) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.getSingleData(BaseConstructor.java:157) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.loadFromReader(Yaml.java:490) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.load(Yaml.java:416) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadFromString(YamlConfiguration.java:57) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:160) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:128) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadConfiguration(YamlConfiguration.java:188) ~[patched_1.16.5.jar:git-Paper-794] at org.by1337.bairdrop.configManager.CConfig.loadConfiguration(CConfig.java:130) ~[?:?] at org.by1337.bairdrop.BAirDrop.onEnable(BAirDrop.java:88) ~[?:?] at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:263) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:370) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:500) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugin(CraftServer.java:518) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugins(CraftServer.java:432) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.loadWorld(MinecraftServer.java:599) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.DedicatedServer.init(DedicatedServer.java:298) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.w(MinecraftServer.java:1074) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.lambda$a$0(MinecraftServer.java:291) ~[patched_1.16.5.jar:git-Paper-794] at java.lang.Thread.run(Thread.java:831) [?:?] [15:26:51] [Server thread/ERROR]: [org.bukkit.configuration.serialization.ConfigurationSerialization] Could not call method 'public static org.bukkit.inventory.ItemStack org.bukkit.inventory.ItemStack.deserialize(java.util.Map)' of class org.bukkit.inventory.ItemStack for deserialization java.lang.IllegalArgumentException: Newer version! Server downgrades are not supported! at com.google.common.base.Preconditions.checkArgument(Preconditions.java:122) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.util.CraftMagicNumbers.getMaterial(CraftMagicNumbers.java:245) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.inventory.ItemStack.deserialize(ItemStack.java:504) ~[patched_1.16.5.jar:git-Paper-794] at jdk.internal.reflect.GeneratedMethodAccessor23.invoke(Unknown Source) ~[?:?] at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?] at java.lang.reflect.Method.invoke(Method.java:567) ~[?:?] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeViaMethod(ConfigurationSerialization.java:85) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserialize(ConfigurationSerialization.java:127) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeObject(ConfigurationSerialization.java:207) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:37) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructDocument(BaseConstructor.java:173) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.getSingleData(BaseConstructor.java:157) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.loadFromReader(Yaml.java:490) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.load(Yaml.java:416) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadFromString(YamlConfiguration.java:57) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:160) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:128) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadConfiguration(YamlConfiguration.java:188) ~[patched_1.16.5.jar:git-Paper-794] at org.by1337.bairdrop.configManager.CConfig.loadConfiguration(CConfig.java:130) ~[?:?] at org.by1337.bairdrop.BAirDrop.onEnable(BAirDrop.java:88) ~[?:?] at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:263) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:370) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:500) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugin(CraftServer.java:518) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugins(CraftServer.java:432) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.loadWorld(MinecraftServer.java:599) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.DedicatedServer.init(DedicatedServer.java:298) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.w(MinecraftServer.java:1074) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.lambda$a$0(MinecraftServer.java:291) ~[patched_1.16.5.jar:git-Paper-794] at java.lang.Thread.run(Thread.java:831) [?:?] [15:26:51] [Server thread/ERROR]: [org.bukkit.configuration.serialization.ConfigurationSerialization] Could not call method 'public static org.bukkit.inventory.ItemStack org.bukkit.inventory.ItemStack.deserialize(java.util.Map)' of class org.bukkit.inventory.ItemStack for deserialization java.lang.IllegalArgumentException: Newer version! Server downgrades are not supported! at com.google.common.base.Preconditions.checkArgument(Preconditions.java:122) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.util.CraftMagicNumbers.getMaterial(CraftMagicNumbers.java:245) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.inventory.ItemStack.deserialize(ItemStack.java:504) ~[patched_1.16.5.jar:git-Paper-794] at jdk.internal.reflect.GeneratedMethodAccessor23.invoke(Unknown Source) ~[?:?] at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?] at java.lang.reflect.Method.invoke(Method.java:567) ~[?:?] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeViaMethod(ConfigurationSerialization.java:85) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserialize(ConfigurationSerialization.java:127) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeObject(ConfigurationSerialization.java:207) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:37) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructDocument(BaseConstructor.java:173) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.getSingleData(BaseConstructor.java:157) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.loadFromReader(Yaml.java:490) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.load(Yaml.java:416) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadFromString(YamlConfiguration.java:57) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:160) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:128) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadConfiguration(YamlConfiguration.java:188) ~[patched_1.16.5.jar:git-Paper-794] at org.by1337.bairdrop.configManager.CConfig.loadConfiguration(CConfig.java:130) ~[?:?] at org.by1337.bairdrop.BAirDrop.onEnable(BAirDrop.java:88) ~[?:?] at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:263) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:370) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:500) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugin(CraftServer.java:518) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugins(CraftServer.java:432) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.loadWorld(MinecraftServer.java:599) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.DedicatedServer.init(DedicatedServer.java:298) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.w(MinecraftServer.java:1074) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.lambda$a$0(MinecraftServer.java:291) ~[patched_1.16.5.jar:git-Paper-794] at java.lang.Thread.run(Thread.java:831) [?:?] [15:26:51] [Server thread/ERROR]: [org.bukkit.configuration.serialization.ConfigurationSerialization] Could not call method 'public static org.bukkit.inventory.ItemStack org.bukkit.inventory.ItemStack.deserialize(java.util.Map)' of class org.bukkit.inventory.ItemStack for deserialization java.lang.IllegalArgumentException: Newer version! Server downgrades are not supported! at com.google.common.base.Preconditions.checkArgument(Preconditions.java:122) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.util.CraftMagicNumbers.getMaterial(CraftMagicNumbers.java:245) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.inventory.ItemStack.deserialize(ItemStack.java:504) ~[patched_1.16.5.jar:git-Paper-794] at jdk.internal.reflect.GeneratedMethodAccessor23.invoke(Unknown Source) ~[?:?] at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?] at java.lang.reflect.Method.invoke(Method.java:567) ~[?:?] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeViaMethod(ConfigurationSerialization.java:85) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserialize(ConfigurationSerialization.java:127) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeObject(ConfigurationSerialization.java:207) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:37) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructDocument(BaseConstructor.java:173) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.getSingleData(BaseConstructor.java:157) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.loadFromReader(Yaml.java:490) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.load(Yaml.java:416) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadFromString(YamlConfiguration.java:57) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:160) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:128) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadConfiguration(YamlConfiguration.java:188) ~[patched_1.16.5.jar:git-Paper-794] at org.by1337.bairdrop.configManager.CConfig.loadConfiguration(CConfig.java:130) ~[?:?] at org.by1337.bairdrop.BAirDrop.onEnable(BAirDrop.java:88) ~[?:?] at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:263) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:370) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:500) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugin(CraftServer.java:518) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugins(CraftServer.java:432) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.loadWorld(MinecraftServer.java:599) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.DedicatedServer.init(DedicatedServer.java:298) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.w(MinecraftServer.java:1074) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.lambda$a$0(MinecraftServer.java:291) ~[patched_1.16.5.jar:git-Paper-794] at java.lang.Thread.run(Thread.java:831) [?:?] [15:26:51] [Server thread/ERROR]: [org.bukkit.configuration.serialization.ConfigurationSerialization] Could not call method 'public static org.bukkit.inventory.ItemStack org.bukkit.inventory.ItemStack.deserialize(java.util.Map)' of class org.bukkit.inventory.ItemStack for deserialization java.lang.IllegalArgumentException: Newer version! Server downgrades are not supported! at com.google.common.base.Preconditions.checkArgument(Preconditions.java:122) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.util.CraftMagicNumbers.getMaterial(CraftMagicNumbers.java:245) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.inventory.ItemStack.deserialize(ItemStack.java:504) ~[patched_1.16.5.jar:git-Paper-794] at jdk.internal.reflect.GeneratedMethodAccessor23.invoke(Unknown Source) ~[?:?] at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?] at java.lang.reflect.Method.invoke(Method.java:567) ~[?:?] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeViaMethod(ConfigurationSerialization.java:85) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserialize(ConfigurationSerialization.java:127) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeObject(ConfigurationSerialization.java:207) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:37) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructDocument(BaseConstructor.java:173) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.getSingleData(BaseConstructor.java:157) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.loadFromReader(Yaml.java:490) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.load(Yaml.java:416) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadFromString(YamlConfiguration.java:57) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:160) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:128) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadConfiguration(YamlConfiguration.java:188) ~[patched_1.16.5.jar:git-Paper-794] at org.by1337.bairdrop.configManager.CConfig.loadConfiguration(CConfig.java:130) ~[?:?] at org.by1337.bairdrop.BAirDrop.onEnable(BAirDrop.java:88) ~[?:?] at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:263) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:370) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:500) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugin(CraftServer.java:518) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugins(CraftServer.java:432) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.loadWorld(MinecraftServer.java:599) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.DedicatedServer.init(DedicatedServer.java:298) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.w(MinecraftServer.java:1074) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.lambda$a$0(MinecraftServer.java:291) ~[patched_1.16.5.jar:git-Paper-794] at java.lang.Thread.run(Thread.java:831) [?:?] [15:26:51] [Server thread/ERROR]: [org.bukkit.configuration.serialization.ConfigurationSerialization] Could not call method 'public static org.bukkit.inventory.ItemStack org.bukkit.inventory.ItemStack.deserialize(java.util.Map)' of class org.bukkit.inventory.ItemStack for deserialization java.lang.IllegalArgumentException: Newer version! Server downgrades are not supported! at com.google.common.base.Preconditions.checkArgument(Preconditions.java:122) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.util.CraftMagicNumbers.getMaterial(CraftMagicNumbers.java:245) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.inventory.ItemStack.deserialize(ItemStack.java:504) ~[patched_1.16.5.jar:git-Paper-794] at jdk.internal.reflect.GeneratedMethodAccessor23.invoke(Unknown Source) ~[?:?] at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?] at java.lang.reflect.Method.invoke(Method.java:567) ~[?:?] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeViaMethod(ConfigurationSerialization.java:85) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserialize(ConfigurationSerialization.java:127) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeObject(ConfigurationSerialization.java:207) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:37) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructDocument(BaseConstructor.java:173) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.getSingleData(BaseConstructor.java:157) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.loadFromReader(Yaml.java:490) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.load(Yaml.java:416) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadFromString(YamlConfiguration.java:57) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:160) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:128) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadConfiguration(YamlConfiguration.java:188) ~[patched_1.16.5.jar:git-Paper-794] at org.by1337.bairdrop.configManager.CConfig.loadConfiguration(CConfig.java:130) ~[?:?] at org.by1337.bairdrop.BAirDrop.onEnable(BAirDrop.java:88) ~[?:?] at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:263) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:370) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:500) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugin(CraftServer.java:518) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugins(CraftServer.java:432) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.loadWorld(MinecraftServer.java:599) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.DedicatedServer.init(DedicatedServer.java:298) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.w(MinecraftServer.java:1074) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.lambda$a$0(MinecraftServer.java:291) ~[patched_1.16.5.jar:git-Paper-794] at java.lang.Thread.run(Thread.java:831) [?:?] [15:26:51] [Server thread/ERROR]: [org.bukkit.configuration.serialization.ConfigurationSerialization] Could not call method 'public static org.bukkit.inventory.ItemStack org.bukkit.inventory.ItemStack.deserialize(java.util.Map)' of class org.bukkit.inventory.ItemStack for deserialization java.lang.IllegalArgumentException: Newer version! Server downgrades are not supported! at com.google.common.base.Preconditions.checkArgument(Preconditions.java:122) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.util.CraftMagicNumbers.getMaterial(CraftMagicNumbers.java:245) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.inventory.ItemStack.deserialize(ItemStack.java:504) ~[patched_1.16.5.jar:git-Paper-794] at jdk.internal.reflect.GeneratedMethodAccessor23.invoke(Unknown Source) ~[?:?] at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?] at java.lang.reflect.Method.invoke(Method.java:567) ~[?:?] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeViaMethod(ConfigurationSerialization.java:85) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserialize(ConfigurationSerialization.java:127) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeObject(ConfigurationSerialization.java:207) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:37) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructDocument(BaseConstructor.java:173) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.getSingleData(BaseConstructor.java:157) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.loadFromReader(Yaml.java:490) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.load(Yaml.java:416) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadFromString(YamlConfiguration.java:57) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:160) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:128) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadConfiguration(YamlConfiguration.java:188) ~[patched_1.16.5.jar:git-Paper-794] at org.by1337.bairdrop.configManager.CConfig.loadConfiguration(CConfig.java:130) ~[?:?] at org.by1337.bairdrop.BAirDrop.onEnable(BAirDrop.java:88) ~[?:?] at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:263) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:370) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:500) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugin(CraftServer.java:518) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugins(CraftServer.java:432) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.loadWorld(MinecraftServer.java:599) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.DedicatedServer.init(DedicatedServer.java:298) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.w(MinecraftServer.java:1074) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.lambda$a$0(MinecraftServer.java:291) ~[patched_1.16.5.jar:git-Paper-794] at java.lang.Thread.run(Thread.java:831) [?:?] [15:26:51] [Server thread/ERROR]: [org.bukkit.configuration.serialization.ConfigurationSerialization] Could not call method 'public static org.bukkit.Location org.bukkit.Location.deserialize(java.util.Map)' of class org.bukkit.Location for deserialization java.lang.IllegalArgumentException: unknown world at org.bukkit.Location.deserialize(Location.java:1137) ~[patched_1.16.5.jar:git-Paper-794] at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:?] at jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:78) ~[?:?] at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?] at java.lang.reflect.Method.invoke(Method.java:567) ~[?:?] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeViaMethod(ConfigurationSerialization.java:85) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserialize(ConfigurationSerialization.java:127) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeObject(ConfigurationSerialization.java:207) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:37) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructDocument(BaseConstructor.java:173) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.getSingleData(BaseConstructor.java:157) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.loadFromReader(Yaml.java:490) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.load(Yaml.java:416) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadFromString(YamlConfiguration.java:57) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:160) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:128) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadConfiguration(YamlConfiguration.java:188) ~[patched_1.16.5.jar:git-Paper-794] at org.by1337.bairdrop.configManager.CConfig.loadConfiguration(CConfig.java:130) ~[?:?] at org.by1337.bairdrop.BAirDrop.onEnable(BAirDrop.java:88) ~[?:?] at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:263) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:370) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:500) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugin(CraftServer.java:518) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugins(CraftServer.java:432) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.loadWorld(MinecraftServer.java:599) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.DedicatedServer.init(DedicatedServer.java:298) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.w(MinecraftServer.java:1074) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.lambda$a$0(MinecraftServer.java:291) ~[patched_1.16.5.jar:git-Paper-794] at java.lang.Thread.run(Thread.java:831) [?:?] [15:26:51] [Server thread/ERROR]: [org.bukkit.configuration.serialization.ConfigurationSerialization] Could not call method 'public static org.bukkit.inventory.ItemStack org.bukkit.inventory.ItemStack.deserialize(java.util.Map)' of class org.bukkit.inventory.ItemStack for deserialization java.lang.IllegalArgumentException: Newer version! Server downgrades are not supported! at com.google.common.base.Preconditions.checkArgument(Preconditions.java:122) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.util.CraftMagicNumbers.getMaterial(CraftMagicNumbers.java:245) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.inventory.ItemStack.deserialize(ItemStack.java:504) ~[patched_1.16.5.jar:git-Paper-794] at jdk.internal.reflect.GeneratedMethodAccessor23.invoke(Unknown Source) ~[?:?] at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?] at java.lang.reflect.Method.invoke(Method.java:567) ~[?:?] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeViaMethod(ConfigurationSerialization.java:85) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserialize(ConfigurationSerialization.java:127) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeObject(ConfigurationSerialization.java:207) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:37) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructDocument(BaseConstructor.java:173) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.getSingleData(BaseConstructor.java:157) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.loadFromReader(Yaml.java:490) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.load(Yaml.java:416) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadFromString(YamlConfiguration.java:57) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:160) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:128) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadConfiguration(YamlConfiguration.java:188) ~[patched_1.16.5.jar:git-Paper-794] at org.by1337.bairdrop.configManager.CConfig.loadConfiguration(CConfig.java:130) ~[?:?] at org.by1337.bairdrop.BAirDrop.onEnable(BAirDrop.java:88) ~[?:?] at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:263) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:370) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:500) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugin(CraftServer.java:518) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugins(CraftServer.java:432) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.loadWorld(MinecraftServer.java:599) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.DedicatedServer.init(DedicatedServer.java:298) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.w(MinecraftServer.java:1074) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.lambda$a$0(MinecraftServer.java:291) ~[patched_1.16.5.jar:git-Paper-794] at java.lang.Thread.run(Thread.java:831) [?:?] [15:26:51] [Server thread/ERROR]: [org.bukkit.configuration.serialization.ConfigurationSerialization] Could not call method 'public static org.bukkit.inventory.ItemStack org.bukkit.inventory.ItemStack.deserialize(java.util.Map)' of class org.bukkit.inventory.ItemStack for deserialization java.lang.IllegalArgumentException: Newer version! Server downgrades are not supported! at com.google.common.base.Preconditions.checkArgument(Preconditions.java:122) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.util.CraftMagicNumbers.getMaterial(CraftMagicNumbers.java:245) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.inventory.ItemStack.deserialize(ItemStack.java:504) ~[patched_1.16.5.jar:git-Paper-794] at jdk.internal.reflect.GeneratedMethodAccessor23.invoke(Unknown Source) ~[?:?] at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?] at java.lang.reflect.Method.invoke(Method.java:567) ~[?:?] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeViaMethod(ConfigurationSerialization.java:85) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserialize(ConfigurationSerialization.java:127) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeObject(ConfigurationSerialization.java:207) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:37) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructDocument(BaseConstructor.java:173) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.getSingleData(BaseConstructor.java:157) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.loadFromReader(Yaml.java:490) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.load(Yaml.java:416) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadFromString(YamlConfiguration.java:57) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:160) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:128) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadConfiguration(YamlConfiguration.java:188) ~[patched_1.16.5.jar:git-Paper-794] at org.by1337.bairdrop.configManager.CConfig.loadConfiguration(CConfig.java:130) ~[?:?] at org.by1337.bairdrop.BAirDrop.onEnable(BAirDrop.java:88) ~[?:?] at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:263) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:370) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:500) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugin(CraftServer.java:518) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugins(CraftServer.java:432) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.loadWorld(MinecraftServer.java:599) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.DedicatedServer.init(DedicatedServer.java:298) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.w(MinecraftServer.java:1074) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.lambda$a$0(MinecraftServer.java:291) ~[patched_1.16.5.jar:git-Paper-794] at java.lang.Thread.run(Thread.java:831) [?:?] [15:26:51] [Server thread/ERROR]: [org.bukkit.configuration.serialization.ConfigurationSerialization] Could not call method 'public static org.bukkit.inventory.ItemStack org.bukkit.inventory.ItemStack.deserialize(java.util.Map)' of class org.bukkit.inventory.ItemStack for deserialization java.lang.IllegalArgumentException: Newer version! Server downgrades are not supported! at com.google.common.base.Preconditions.checkArgument(Preconditions.java:122) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.util.CraftMagicNumbers.getMaterial(CraftMagicNumbers.java:245) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.inventory.ItemStack.deserialize(ItemStack.java:504) ~[patched_1.16.5.jar:git-Paper-794] at jdk.internal.reflect.GeneratedMethodAccessor23.invoke(Unknown Source) ~[?:?] at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?] at java.lang.reflect.Method.invoke(Method.java:567) ~[?:?] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeViaMethod(ConfigurationSerialization.java:85) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserialize(ConfigurationSerialization.java:127) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeObject(ConfigurationSerialization.java:207) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:37) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructDocument(BaseConstructor.java:173) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.getSingleData(BaseConstructor.java:157) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.loadFromReader(Yaml.java:490) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.load(Yaml.java:416) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadFromString(YamlConfiguration.java:57) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:160) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:128) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadConfiguration(YamlConfiguration.java:188) ~[patched_1.16.5.jar:git-Paper-794] at org.by1337.bairdrop.configManager.CConfig.loadConfiguration(CConfig.java:130) ~[?:?] at org.by1337.bairdrop.BAirDrop.onEnable(BAirDrop.java:88) ~[?:?] at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:263) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:370) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:500) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugin(CraftServer.java:518) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugins(CraftServer.java:432) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.loadWorld(MinecraftServer.java:599) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.DedicatedServer.init(DedicatedServer.java:298) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.w(MinecraftServer.java:1074) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.lambda$a$0(MinecraftServer.java:291) ~[patched_1.16.5.jar:git-Paper-794] at java.lang.Thread.run(Thread.java:831) [?:?] [15:26:51] [Server thread/ERROR]: [org.bukkit.configuration.serialization.ConfigurationSerialization] Could not call method 'public static org.bukkit.inventory.ItemStack org.bukkit.inventory.ItemStack.deserialize(java.util.Map)' of class org.bukkit.inventory.ItemStack for deserialization java.lang.IllegalArgumentException: Newer version! Server downgrades are not supported! at com.google.common.base.Preconditions.checkArgument(Preconditions.java:122) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.util.CraftMagicNumbers.getMaterial(CraftMagicNumbers.java:245) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.inventory.ItemStack.deserialize(ItemStack.java:504) ~[patched_1.16.5.jar:git-Paper-794] at jdk.internal.reflect.GeneratedMethodAccessor23.invoke(Unknown Source) ~[?:?] at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?] at java.lang.reflect.Method.invoke(Method.java:567) ~[?:?] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeViaMethod(ConfigurationSerialization.java:85) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserialize(ConfigurationSerialization.java:127) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeObject(ConfigurationSerialization.java:207) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:37) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructDocument(BaseConstructor.java:173) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.getSingleData(BaseConstructor.java:157) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.loadFromReader(Yaml.java:490) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.load(Yaml.java:416) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadFromString(YamlConfiguration.java:57) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:160) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:128) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadConfiguration(YamlConfiguration.java:188) ~[patched_1.16.5.jar:git-Paper-794] at org.by1337.bairdrop.configManager.CConfig.loadConfiguration(CConfig.java:130) ~[?:?] at org.by1337.bairdrop.BAirDrop.onEnable(BAirDrop.java:88) ~[?:?] at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:263) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:370) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:500) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugin(CraftServer.java:518) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugins(CraftServer.java:432) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.loadWorld(MinecraftServer.java:599) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.DedicatedServer.init(DedicatedServer.java:298) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.w(MinecraftServer.java:1074) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.lambda$a$0(MinecraftServer.java:291) ~[patched_1.16.5.jar:git-Paper-794] at java.lang.Thread.run(Thread.java:831) [?:?] [15:26:51] [Server thread/ERROR]: [org.bukkit.configuration.serialization.ConfigurationSerialization] Could not call method 'public static org.bukkit.inventory.ItemStack org.bukkit.inventory.ItemStack.deserialize(java.util.Map)' of class org.bukkit.inventory.ItemStack for deserialization java.lang.IllegalArgumentException: Newer version! Server downgrades are not supported! at com.google.common.base.Preconditions.checkArgument(Preconditions.java:122) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.util.CraftMagicNumbers.getMaterial(CraftMagicNumbers.java:245) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.inventory.ItemStack.deserialize(ItemStack.java:504) ~[patched_1.16.5.jar:git-Paper-794] at jdk.internal.reflect.GeneratedMethodAccessor23.invoke(Unknown Source) ~[?:?] at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?] at java.lang.reflect.Method.invoke(Method.java:567) ~[?:?] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeViaMethod(ConfigurationSerialization.java:85) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserialize(ConfigurationSerialization.java:127) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeObject(ConfigurationSerialization.java:207) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:37) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructDocument(BaseConstructor.java:173) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.getSingleData(BaseConstructor.java:157) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.loadFromReader(Yaml.java:490) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.load(Yaml.java:416) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadFromString(YamlConfiguration.java:57) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:160) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:128) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadConfiguration(YamlConfiguration.java:188) ~[patched_1.16.5.jar:git-Paper-794] at org.by1337.bairdrop.configManager.CConfig.loadConfiguration(CConfig.java:130) ~[?:?] at org.by1337.bairdrop.BAirDrop.onEnable(BAirDrop.java:88) ~[?:?] at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:263) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:370) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:500) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugin(CraftServer.java:518) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugins(CraftServer.java:432) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.loadWorld(MinecraftServer.java:599) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.DedicatedServer.init(DedicatedServer.java:298) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.w(MinecraftServer.java:1074) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.lambda$a$0(MinecraftServer.java:291) ~[patched_1.16.5.jar:git-Paper-794] at java.lang.Thread.run(Thread.java:831) [?:?] [15:26:51] [Server thread/ERROR]: [BAirDrop] World error in airdrop event1 static location not loaded! [15:26:51] [Server thread/WARN]: [BAirDrop] No items in slot 0! [15:26:51] [Server thread/WARN]: [BAirDrop] No items in slot 1! [15:26:51] [Server thread/WARN]: [BAirDrop] No items in slot 2! [15:26:51] [Server thread/WARN]: [BAirDrop] No items in slot 3! [15:26:51] [Server thread/WARN]: [BAirDrop] No items in slot 4! [15:26:51] [Server thread/WARN]: [BAirDrop] No items in slot 5! [15:26:51] [Server thread/WARN]: [BAirDrop] No items in slot 6! [15:26:51] [Server thread/WARN]: [BAirDrop] No items in slot 7! [15:26:51] [Server thread/WARN]: [BAirDrop] No items in slot 8! [15:26:51] [Server thread/WARN]: [BAirDrop] No items in slot 9! [15:26:51] [Server thread/WARN]: [BAirDrop] No items in slot 10! [15:26:51] [Server thread/WARN]: [BAirDrop] No items in slot 11! [15:26:51] [Server thread/WARN]: [BAirDrop] No items in slot 12! [15:26:51] [Server thread/WARN]: [BAirDrop] No items in slot 13! [15:26:51] [Server thread/WARN]: [BAirDrop] No items in slot 14! [15:26:51] [Server thread/WARN]: [BAirDrop] No items in slot 15! [15:26:51] [Server thread/WARN]: [BAirDrop] No items in slot 16! [15:26:51] [Server thread/WARN]: [BAirDrop] No items in slot 17! [15:26:51] [Server thread/WARN]: [BAirDrop] No items in slot 18! [15:26:51] [Server thread/WARN]: [BAirDrop] No items in slot 19! [15:26:51] [Server thread/WARN]: [BAirDrop] No items in slot 20! [15:26:51] [Server thread/WARN]: [BAirDrop] No items in slot 21! [15:26:51] [Server thread/WARN]: [BAirDrop] No items in slot 22! [15:26:51] [Server thread/WARN]: [BAirDrop] No items in slot 23! [15:26:51] [Server thread/WARN]: [BAirDrop] No items in slot 24! [15:26:51] [Server thread/WARN]: [BAirDrop] No items in slot 25! [15:26:51] [Server thread/WARN]: [BAirDrop] No items in slot 26! [15:26:51] [Server thread/WARN]: [BAirDrop] No items in slot 27! [15:26:51] [Server thread/WARN]: [BAirDrop] No items in slot 28! [15:26:51] [Server thread/WARN]: [BAirDrop] No items in slot 29! [15:26:51] [Server thread/WARN]: [BAirDrop] No items in slot 30! [15:26:51] [Server thread/WARN]: [BAirDrop] No items in slot 31! [15:26:51] [Server thread/WARN]: [BAirDrop] No items in slot 32! [15:26:51] [Server thread/WARN]: [BAirDrop] No items in slot 33! [15:26:51] [Server thread/WARN]: [BAirDrop] No items in slot 34! [15:26:51] [Server thread/WARN]: [BAirDrop] No items in slot 35! [15:26:51] [Server thread/WARN]: [BAirDrop] No items in slot 36! [15:26:51] [Server thread/WARN]: [BAirDrop] No items in slot 37! [15:26:51] [Server thread/WARN]: [BAirDrop] No items in slot 38! [15:26:51] [Server thread/WARN]: [BAirDrop] No items in slot 39! [15:26:51] [Server thread/WARN]: [BAirDrop] No items in slot 40! [15:26:51] [Server thread/WARN]: [BAirDrop] No items in slot 41! [15:26:51] [Server thread/WARN]: [BAirDrop] No items in slot 42! [15:26:51] [Server thread/WARN]: [BAirDrop] No items in slot 43! [15:26:51] [Server thread/WARN]: [BAirDrop] No items in slot 44! [15:26:51] [Server thread/WARN]: [BAirDrop] No items in slot 45! [15:26:51] [Server thread/WARN]: [BAirDrop] No items in slot 46! [15:26:51] [Server thread/WARN]: [BAirDrop] No items in slot 47! [15:26:51] [Server thread/WARN]: [BAirDrop] No items in slot 48! [15:26:51] [Server thread/WARN]: [BAirDrop] No items in slot 49! [15:26:51] [Server thread/WARN]: [BAirDrop] No items in slot 50! [15:26:51] [Server thread/WARN]: [BAirDrop] No items in slot 51! [15:26:51] [Server thread/WARN]: [BAirDrop] No items in slot 52! [15:26:51] [Server thread/WARN]: [BAirDrop] No items in slot 53! [15:26:51] [Server thread/INFO]: Airdrop event1 loaded! [15:26:51] [Server thread/ERROR]: [BAirDrop] World error in airdrop event2 static location not loaded! [15:26:51] [Server thread/WARN]: java.lang.IllegalArgumentException: No enum constant org.bukkit.Material.AMETHYST_BLOCK [15:26:51] [Server thread/WARN]: at java.base/java.lang.Enum.valueOf(Enum.java:273) [15:26:51] [Server thread/WARN]: at org.bukkit.Material.valueOf(Material.java:90) [15:26:51] [Server thread/WARN]: at org.by1337.bairdrop.CAirDrop.(CAirDrop.java:190) [15:26:51] [Server thread/WARN]: at org.by1337.bairdrop.BAirDrop.onEnable(BAirDrop.java:112) [15:26:51] [Server thread/WARN]: at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:263) [15:26:51] [Server thread/WARN]: at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:370) [15:26:51] [Server thread/WARN]: at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:500) [15:26:51] [Server thread/WARN]: at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugin(CraftServer.java:518) [15:26:51] [Server thread/WARN]: at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugins(CraftServer.java:432) [15:26:51] [Server thread/WARN]: at net.minecraft.server.v1_16_R3.MinecraftServer.loadWorld(MinecraftServer.java:599) [15:26:51] [Server thread/WARN]: at net.minecraft.server.v1_16_R3.DedicatedServer.init(DedicatedServer.java:298) [15:26:51] [Server thread/WARN]: at net.minecraft.server.v1_16_R3.MinecraftServer.w(MinecraftServer.java:1074) [15:26:51] [Server thread/WARN]: at net.minecraft.server.v1_16_R3.MinecraftServer.lambda$a$0(MinecraftServer.java:291) [15:26:51] [Server thread/WARN]: at java.base/java.lang.Thread.run(Thread.java:831) [15:26:51] [Server thread/ERROR]: [BAirDrop] Airdrop not loaded! [15:26:51] [Server thread/ERROR]: Error occurred while enabling BAirDrop v1.0.9 (Is it up to date?) java.lang.NullPointerException: Cannot invoke "java.util.Collection.toArray()" because "c" is null at java.util.ArrayList.(ArrayList.java:181) ~[?:?] at org.by1337.bairdrop.CAirDrop.registerAllSignedObservers(CAirDrop.java:1325) ~[?:?] at org.by1337.bairdrop.BAirDrop.onEnable(BAirDrop.java:123) ~[?:?] at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:263) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:370) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:500) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugin(CraftServer.java:518) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugins(CraftServer.java:432) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.loadWorld(MinecraftServer.java:599) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.DedicatedServer.init(DedicatedServer.java:298) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.w(MinecraftServer.java:1074) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.lambda$a$0(MinecraftServer.java:291) ~[patched_1.16.5.jar:git-Paper-794] at java.lang.Thread.run(Thread.java:831) [?:?] [15:26:51] [Server thread/INFO]: [BAirDrop] Disabling BAirDrop v1.0.9 [15:26:51] [Server thread/ERROR]: Error occurred while disabling BAirDrop v1.0.9 (Is it up to date?) java.lang.NullPointerException: Cannot invoke "org.bukkit.World.getName()" because "this.world" is null at org.by1337.bairdrop.CAirDrop.save(CAirDrop.java:431) ~[?:?] at org.by1337.bairdrop.BAirDrop.onDisable(BAirDrop.java:177) ~[?:?] at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:265) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.java.JavaPluginLoader.disablePlugin(JavaPluginLoader.java:405) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.SimplePluginManager.disablePlugin(SimplePluginManager.java:533) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:374) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:500) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugin(CraftServer.java:518) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugins(CraftServer.java:432) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.loadWorld(MinecraftServer.java:599) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.DedicatedServer.init(DedicatedServer.java:298) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.w(MinecraftServer.java:1074) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.lambda$a$0(MinecraftServer.java:291) ~[patched_1.16.5.jar:git-Paper-794] at java.lang.Thread.run(Thread.java:831) [?:?] [15:26:51] [Server thread/INFO]: [SCore] Enabling SCore v5.24.12.29 [15:26:51] [Server thread/INFO]: ================ SCore ================ [15:26:51] [Server thread/INFO]: SCore is running on Paper or fork [15:26:51] [Server thread/INFO]: SCore Version of the server git-Paper-794 (MC: 1.16.5) ! [15:26:51] [Server thread/INFO]: SCore ExecutableItems hooked ! (**.**.**.**) Load After [15:26:51] [Server thread/INFO]: SCore PlaceholderAPI hooked ! (2.11.6) Load Before [15:26:51] [Server thread/INFO]: SCore WorldGuard hooked ! (7.0.4+f7ff984) Load Before [15:26:51] [Server thread/INFO]: SCore Vault hooked ! (1.7.3-b131) Load Before [15:26:51] [Server thread/INFO]: SCore Multiverse-Core hooked ! (4.3.1-b861) Load Before [15:26:51] [Server thread/INFO]: SCore ProtocolLib hooked ! [15:26:51] [Server thread/INFO]: SCore Locale setup: EN [15:26:51] [Server thread/INFO]: SCore DecentHolograms hooked ! (2.8.12) Load Before [15:26:51] [Server thread/INFO]: SCore HolographicDisplays hooked ! [15:26:51] [Server thread/INFO]: SCore CMI hooked ! (**.**.**.**) Load After [15:26:51] [Server thread/INFO]: SCore TAB hooked ! (5.0.3) Load After [15:26:51] [Server thread/INFO]: SCore WorldEdit hooked ! (7.2.15+6463-5ca4dff) Load Before [15:26:51] [Server thread/INFO]: SCore Language of the editor setup on EN [15:26:51] [Server thread/INFO]: SCore Language for in-game messages setup on EN [15:26:51] [Server thread/INFO]: SCore will connect to the database hosted: In Local [15:26:51] [Server thread/INFO]: SCore Connection to the db... [15:26:51] [Server thread/INFO]: SCore will connect to the database hosted: In Local [15:26:51] [Server thread/INFO]: SCore Creating table SecurityOP if not exists... [15:26:51] [Server thread/INFO]: SCore Creating table Commands if not exists... [15:26:51] [Server thread/INFO]: SCore Creating table Cooldowns if not exists... [15:26:51] [Server thread/INFO]: SCore Creating table Commands Player if not exists... [15:26:51] [Server thread/INFO]: SCore Creating table Commands Entity if not exists... [15:26:51] [Server thread/INFO]: SCore Creating table Commands Block if not exists... [15:26:51] [Server thread/INFO]: SCore Creating table UsePerDay if not exists... [15:26:51] [Server thread/INFO]: SCore SCore loaded 1 variables from local files ! [15:26:51] [Server thread/INFO]: SCore SCore loaded 0 delayed commands saved [15:26:52] [Server thread/INFO]: [PlaceholderAPI] Successfully registered internal expansion: SCore [1.0.0] [15:26:52] [Server thread/INFO]: ================ SCore ================ [15:26:52] [Server thread/INFO]: [DeluxeMenus] Enabling DeluxeMenus v1.14.0-Release [15:26:52] [Server thread/INFO]: [DeluxeMenus] Successfully hooked into PlaceholderAPI! [15:26:52] [Server thread/INFO]: [DeluxeMenus] 34 GUI menus loaded! [15:26:52] [Server thread/INFO]: [DeluxeMenus] You are running the latest version of DeluxeMenus! [15:26:52] [Server thread/INFO]: [PlaceholderAPI] Successfully registered internal expansion: deluxemenus [1.14.0-Release] [15:26:52] [Server thread/INFO]: [TradePlus] Enabling TradePlus v3.83 [15:26:52] [Server thread/INFO]: [TAB] Enabling TAB v5.0.3 [15:26:52] [Server thread/INFO]: [TAB] Loaded NMS hook in 122ms [15:26:52] [Server thread/INFO]: [TAB] Enabled in 181ms [15:26:52] [Server thread/INFO]: [ChatEx] Enabling ChatEx v3.2.2 [15:26:52] [Server thread/INFO]: [ChatEx] Successfully hooked into: LuckPerms [15:26:52] [Server thread/INFO]: [ChatEx] Hooked into PlaceholderAPI [15:26:52] [Server thread/INFO]: [ChatEx] Server version:git-Paper-794 (MC: 1.16.5) [15:26:52] [Server thread/INFO]: [ChatEx] Version is later than 1.16. Loading RGB ColorCodes! [15:26:52] [Server thread/INFO]: [ChatEx] Thanks for using bstats, it was enabled! [15:26:52] [Server thread/INFO]: [ChatEx] Is now enabled! [15:26:52] [Server thread/INFO]: [BLib] Enabling BLib v1.0.9 [15:26:52] [Server thread/INFO]: [BLib] Обнаруженная версия сервера: 1.16.5 [15:26:52] [Server thread/INFO]: [PvPManager] Enabling PvPManager v3.18.36 [15:26:52] [Server thread/INFO]: [PvPManager] Using player nametags: false [15:26:52] [Server thread/INFO]: [PvPManager] Connected to SQLITE database successfully [15:26:52] [Server thread/INFO]: [PvPManager] Players stored: 11 [15:26:52] [Server thread/INFO]: [PvPManager] WorldGuard Found! Enabling Support For WorldGuard Regions [15:26:52] [Server thread/INFO]: [PvPManager] Vault Found! Using it for currency related features [15:26:52] [Server thread/WARN]: [PvPManager] Error loading Vault! No Economy plugin found [15:26:52] [Server thread/INFO]: [PvPManager] PlaceholderAPI Found! Hooked successfully [15:26:52] [Server thread/INFO]: [PlaceholderAPI] Successfully registered internal expansion: pvpmanager [3.18.36] [15:26:52] [Server thread/INFO]: [PvPManager] PvPManager v3.18.36 enabled (118 ms) [15:26:52] [Server thread/INFO]: [VioTrap] Enabling VioTrap v1.6 [15:26:53] [Server thread/INFO]: [ACubelets] Enabling ACubelets v2.0.2 [15:26:53] [Server thread/INFO]: [15:26:53] [Server thread/INFO]: Loading language: [15:26:53] [Server thread/INFO]: 'en' loaded! [15:26:53] [Server thread/INFO]: [15:26:53] [Server thread/INFO]: Loading database: [15:26:53] [Server thread/INFO]: SQLite has been enabled! [15:26:53] [Server thread/INFO]: [15:26:53] [Server thread/INFO]: Loading machines: [15:26:53] [Server thread/INFO]: No Cubelet Machines has been loaded! [15:26:53] [Server thread/INFO]: [15:26:53] [Server thread/INFO]: Loading cubelets: [15:26:53] [Server thread/INFO]: 'titulcase' ► 2 rarities, 11 rewards [15:26:53] [Server thread/INFO]: 'donate' ► 3 rarities, 12 rewards [15:26:53] [Server thread/INFO]: [15:26:53] [Server thread/INFO]: Loading crafts: [15:26:53] [Server thread/INFO]: No Cubelet crafts has been loaded! [15:26:53] [Server thread/INFO]: [15:26:53] [Server thread/INFO]: ACubelets Enabled! [15:26:53] [Server thread/INFO]: Version: 2.0.2 [15:26:53] [Server thread/INFO]: Author: DavidML16 [15:26:53] [Server thread/INFO]: [15:26:53] [Server thread/INFO]: [PlaceholderAPI] Successfully registered internal expansion: acubelets [1.0.0] [15:26:53] [Server thread/INFO]: [ExecutableItems] Enabling ExecutableItems v7.25.1.5 [15:26:53] [Server thread/INFO]: ========*======== ExecutableItems ========*======== [15:26:54] [Server thread/INFO]: ExecutableItems Amount of Executable Items configurations loaded: 153 [15:26:54] [Server thread/INFO]: ExecutableItems Items with display conditions : [15:26:54] [Server thread/INFO]: ========*======== ExecutableItems ========*======== [15:26:54] [Server thread/INFO]: [PlaceholderAPI] Successfully registered internal expansion: ExecutableItems [1.0.0] [15:26:54] [Server thread/INFO]: [CMI] Enabling CMI v9.6.9.9 [15:26:54] [Server thread/INFO]: ┏━━━┓ ┏━┓┏━┓ ┏━━┓ [15:26:54] [Server thread/INFO]: ┃┏━┓┃ ┃ ┗┛ ┃ ┗┫┣┛ [15:26:54] [Server thread/INFO]: ┃┃ ┗┛ ┃┏┓┏┓┃ ┃┃ [15:26:54] [Server thread/INFO]: ┃┃ ┏┓ ┃┃┃┃┃┃ ┃┃ [15:26:54] [Server thread/INFO]: ┃┗━┛┃ ┃┃┃┃┃┃ ┏┫┣┓ [15:26:54] [Server thread/INFO]: ┗━━━┛ ┗┛┗┛┗┛ ┗━━┛ [15:26:54] [Server thread/INFO]: _______________________________________________________ [15:26:54] [Server thread/INFO]: Integrating PaperSpigot async methods [15:26:54] [Server thread/INFO]: Vault found. (Loaded: true) [15:26:54] [Server thread/INFO]: 57 Enabled and 2 Disabled modules [15:26:54] [Server thread/INFO]: ProtocolLib found. (Loaded: true) [15:26:54] [Server thread/INFO]: Permission plugin: LuckPerms5.4.151 [15:26:54] [Server thread/INFO]: Initialized Cipher256 AES [15:26:54] [Server thread/INFO]: Loaded (61) regular alias into memory. Took 59ms [15:26:54] [Server thread/INFO]: Loaded (1) custom text's into memory. Took 3ms [15:26:54] [Server thread/INFO]: (RandomTeleportation) Can't find world with (boxpvp) name [15:26:54] [Server thread/INFO]: (RandomTeleportation) Can't find world with (boxpvp_the_end) name [15:26:54] [Server thread/INFO]: 3.34.0 data base type detected [15:26:55] [Server thread/INFO]: Started SqLite data base. Took 177ms [15:26:55] [Server thread/INFO]: [CMI] Vault was found but economy engine is missing. Use one from list provided in https://dev.bukkit.org/bukkit-plugins/vault/ [15:26:55] [Server thread/INFO]: [CMI] Alternatively you can enable CMI economy in config.yml file [15:26:55] [Server thread/INFO]: Vault was found but not economy plugin, you will have limited economy support [15:26:55] [Server thread/INFO]: Loaded (5) warning categories into memory. Took 1ms [15:26:55] [Server thread/INFO]: Loaded (3) warning commands into memory. Took 0ms [15:26:55] [Server thread/INFO]: Loaded (135) custom mob heads into memory. Took 17ms [15:26:55] [Server thread/INFO]: Loaded (0) cooldowns into memory. Took 28ms [15:26:55] [Server thread/INFO]: Initializing BungeeCord [15:26:55] [Server thread/ERROR]: [org.bukkit.configuration.serialization.ConfigurationSerialization] Could not call method 'public static org.bukkit.inventory.ItemStack org.bukkit.inventory.ItemStack.deserialize(java.util.Map)' of class org.bukkit.inventory.ItemStack for deserialization java.lang.IllegalArgumentException: Newer version! Server downgrades are not supported! at com.google.common.base.Preconditions.checkArgument(Preconditions.java:122) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.util.CraftMagicNumbers.getMaterial(CraftMagicNumbers.java:245) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.inventory.ItemStack.deserialize(ItemStack.java:504) ~[patched_1.16.5.jar:git-Paper-794] at jdk.internal.reflect.GeneratedMethodAccessor23.invoke(Unknown Source) ~[?:?] at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?] at java.lang.reflect.Method.invoke(Method.java:567) ~[?:?] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeViaMethod(ConfigurationSerialization.java:85) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserialize(ConfigurationSerialization.java:127) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeObject(ConfigurationSerialization.java:207) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:37) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructDocument(BaseConstructor.java:173) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.getSingleData(BaseConstructor.java:157) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.loadFromReader(Yaml.java:490) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.load(Yaml.java:416) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadFromString(YamlConfiguration.java:57) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:160) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:128) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadConfiguration(YamlConfiguration.java:188) ~[patched_1.16.5.jar:git-Paper-794] at com.Zrips.CMI.Modules.Kits.KitsManager.load(KitsManager.java:448) ~[?:?] at com.Zrips.CMI.CMI.onEnable(CMI.java:1516) ~[?:?] at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:263) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:370) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:500) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugin(CraftServer.java:518) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugins(CraftServer.java:432) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.loadWorld(MinecraftServer.java:599) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.DedicatedServer.init(DedicatedServer.java:298) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.w(MinecraftServer.java:1074) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.lambda$a$0(MinecraftServer.java:291) ~[patched_1.16.5.jar:git-Paper-794] at java.lang.Thread.run(Thread.java:831) [?:?] [15:26:55] [Server thread/ERROR]: [org.bukkit.configuration.serialization.ConfigurationSerialization] Could not call method 'public static org.bukkit.inventory.ItemStack org.bukkit.inventory.ItemStack.deserialize(java.util.Map)' of class org.bukkit.inventory.ItemStack for deserialization java.lang.IllegalArgumentException: Newer version! Server downgrades are not supported! at com.google.common.base.Preconditions.checkArgument(Preconditions.java:122) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.util.CraftMagicNumbers.getMaterial(CraftMagicNumbers.java:245) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.inventory.ItemStack.deserialize(ItemStack.java:504) ~[patched_1.16.5.jar:git-Paper-794] at jdk.internal.reflect.GeneratedMethodAccessor23.invoke(Unknown Source) ~[?:?] at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?] at java.lang.reflect.Method.invoke(Method.java:567) ~[?:?] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeViaMethod(ConfigurationSerialization.java:85) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserialize(ConfigurationSerialization.java:127) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeObject(ConfigurationSerialization.java:207) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:37) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructDocument(BaseConstructor.java:173) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.getSingleData(BaseConstructor.java:157) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.loadFromReader(Yaml.java:490) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.load(Yaml.java:416) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadFromString(YamlConfiguration.java:57) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:160) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:128) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadConfiguration(YamlConfiguration.java:188) ~[patched_1.16.5.jar:git-Paper-794] at com.Zrips.CMI.Modules.Kits.KitsManager.load(KitsManager.java:448) ~[?:?] at com.Zrips.CMI.CMI.onEnable(CMI.java:1516) ~[?:?] at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:263) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:370) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:500) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugin(CraftServer.java:518) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugins(CraftServer.java:432) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.loadWorld(MinecraftServer.java:599) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.DedicatedServer.init(DedicatedServer.java:298) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.w(MinecraftServer.java:1074) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.lambda$a$0(MinecraftServer.java:291) ~[patched_1.16.5.jar:git-Paper-794] at java.lang.Thread.run(Thread.java:831) [?:?] [15:26:55] [Server thread/ERROR]: [org.bukkit.configuration.serialization.ConfigurationSerialization] Could not call method 'public static org.bukkit.inventory.ItemStack org.bukkit.inventory.ItemStack.deserialize(java.util.Map)' of class org.bukkit.inventory.ItemStack for deserialization java.lang.IllegalArgumentException: Newer version! Server downgrades are not supported! at com.google.common.base.Preconditions.checkArgument(Preconditions.java:122) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.util.CraftMagicNumbers.getMaterial(CraftMagicNumbers.java:245) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.inventory.ItemStack.deserialize(ItemStack.java:504) ~[patched_1.16.5.jar:git-Paper-794] at jdk.internal.reflect.GeneratedMethodAccessor23.invoke(Unknown Source) ~[?:?] at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?] at java.lang.reflect.Method.invoke(Method.java:567) ~[?:?] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeViaMethod(ConfigurationSerialization.java:85) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserialize(ConfigurationSerialization.java:127) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeObject(ConfigurationSerialization.java:207) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:37) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructDocument(BaseConstructor.java:173) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.getSingleData(BaseConstructor.java:157) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.loadFromReader(Yaml.java:490) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.load(Yaml.java:416) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadFromString(YamlConfiguration.java:57) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:160) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:128) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadConfiguration(YamlConfiguration.java:188) ~[patched_1.16.5.jar:git-Paper-794] at com.Zrips.CMI.Modules.Kits.KitsManager.load(KitsManager.java:448) ~[?:?] at com.Zrips.CMI.CMI.onEnable(CMI.java:1516) ~[?:?] at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:263) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:370) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:500) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugin(CraftServer.java:518) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugins(CraftServer.java:432) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.loadWorld(MinecraftServer.java:599) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.DedicatedServer.init(DedicatedServer.java:298) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.w(MinecraftServer.java:1074) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.lambda$a$0(MinecraftServer.java:291) ~[patched_1.16.5.jar:git-Paper-794] at java.lang.Thread.run(Thread.java:831) [?:?] [15:26:55] [Server thread/ERROR]: [org.bukkit.configuration.serialization.ConfigurationSerialization] Could not call method 'public static org.bukkit.inventory.ItemStack org.bukkit.inventory.ItemStack.deserialize(java.util.Map)' of class org.bukkit.inventory.ItemStack for deserialization java.lang.IllegalArgumentException: Newer version! Server downgrades are not supported! at com.google.common.base.Preconditions.checkArgument(Preconditions.java:122) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.util.CraftMagicNumbers.getMaterial(CraftMagicNumbers.java:245) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.inventory.ItemStack.deserialize(ItemStack.java:504) ~[patched_1.16.5.jar:git-Paper-794] at jdk.internal.reflect.GeneratedMethodAccessor23.invoke(Unknown Source) ~[?:?] at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?] at java.lang.reflect.Method.invoke(Method.java:567) ~[?:?] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeViaMethod(ConfigurationSerialization.java:85) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserialize(ConfigurationSerialization.java:127) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeObject(ConfigurationSerialization.java:207) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:37) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructDocument(BaseConstructor.java:173) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.getSingleData(BaseConstructor.java:157) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.loadFromReader(Yaml.java:490) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.load(Yaml.java:416) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadFromString(YamlConfiguration.java:57) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:160) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:128) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadConfiguration(YamlConfiguration.java:188) ~[patched_1.16.5.jar:git-Paper-794] at com.Zrips.CMI.Modules.Kits.KitsManager.load(KitsManager.java:448) ~[?:?] at com.Zrips.CMI.CMI.onEnable(CMI.java:1516) ~[?:?] at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:263) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:370) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:500) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugin(CraftServer.java:518) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugins(CraftServer.java:432) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.loadWorld(MinecraftServer.java:599) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.DedicatedServer.init(DedicatedServer.java:298) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.w(MinecraftServer.java:1074) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.lambda$a$0(MinecraftServer.java:291) ~[patched_1.16.5.jar:git-Paper-794] at java.lang.Thread.run(Thread.java:831) [?:?] [15:26:55] [Server thread/ERROR]: [org.bukkit.configuration.serialization.ConfigurationSerialization] Could not call method 'public static org.bukkit.inventory.ItemStack org.bukkit.inventory.ItemStack.deserialize(java.util.Map)' of class org.bukkit.inventory.ItemStack for deserialization java.lang.IllegalArgumentException: Newer version! Server downgrades are not supported! at com.google.common.base.Preconditions.checkArgument(Preconditions.java:122) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.util.CraftMagicNumbers.getMaterial(CraftMagicNumbers.java:245) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.inventory.ItemStack.deserialize(ItemStack.java:504) ~[patched_1.16.5.jar:git-Paper-794] at jdk.internal.reflect.GeneratedMethodAccessor23.invoke(Unknown Source) ~[?:?] at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?] at java.lang.reflect.Method.invoke(Method.java:567) ~[?:?] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeViaMethod(ConfigurationSerialization.java:85) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserialize(ConfigurationSerialization.java:127) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeObject(ConfigurationSerialization.java:207) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:37) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructDocument(BaseConstructor.java:173) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.getSingleData(BaseConstructor.java:157) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.loadFromReader(Yaml.java:490) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.load(Yaml.java:416) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadFromString(YamlConfiguration.java:57) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:160) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:128) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadConfiguration(YamlConfiguration.java:188) ~[patched_1.16.5.jar:git-Paper-794] at com.Zrips.CMI.Modules.Kits.KitsManager.load(KitsManager.java:448) ~[?:?] at com.Zrips.CMI.CMI.onEnable(CMI.java:1516) ~[?:?] at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:263) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:370) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:500) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugin(CraftServer.java:518) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugins(CraftServer.java:432) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.loadWorld(MinecraftServer.java:599) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.DedicatedServer.init(DedicatedServer.java:298) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.w(MinecraftServer.java:1074) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.lambda$a$0(MinecraftServer.java:291) ~[patched_1.16.5.jar:git-Paper-794] at java.lang.Thread.run(Thread.java:831) [?:?] [15:26:55] [Server thread/ERROR]: [org.bukkit.configuration.serialization.ConfigurationSerialization] Could not call method 'public static org.bukkit.inventory.ItemStack org.bukkit.inventory.ItemStack.deserialize(java.util.Map)' of class org.bukkit.inventory.ItemStack for deserialization java.lang.IllegalArgumentException: Newer version! Server downgrades are not supported! at com.google.common.base.Preconditions.checkArgument(Preconditions.java:122) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.util.CraftMagicNumbers.getMaterial(CraftMagicNumbers.java:245) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.inventory.ItemStack.deserialize(ItemStack.java:504) ~[patched_1.16.5.jar:git-Paper-794] at jdk.internal.reflect.GeneratedMethodAccessor23.invoke(Unknown Source) ~[?:?] at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?] at java.lang.reflect.Method.invoke(Method.java:567) ~[?:?] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeViaMethod(ConfigurationSerialization.java:85) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserialize(ConfigurationSerialization.java:127) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeObject(ConfigurationSerialization.java:207) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:37) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructDocument(BaseConstructor.java:173) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.getSingleData(BaseConstructor.java:157) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.loadFromReader(Yaml.java:490) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.load(Yaml.java:416) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadFromString(YamlConfiguration.java:57) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:160) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:128) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadConfiguration(YamlConfiguration.java:188) ~[patched_1.16.5.jar:git-Paper-794] at com.Zrips.CMI.Modules.Kits.KitsManager.load(KitsManager.java:448) ~[?:?] at com.Zrips.CMI.CMI.onEnable(CMI.java:1516) ~[?:?] at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:263) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:370) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:500) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugin(CraftServer.java:518) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugins(CraftServer.java:432) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.loadWorld(MinecraftServer.java:599) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.DedicatedServer.init(DedicatedServer.java:298) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.w(MinecraftServer.java:1074) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.lambda$a$0(MinecraftServer.java:291) ~[patched_1.16.5.jar:git-Paper-794] at java.lang.Thread.run(Thread.java:831) [?:?] [15:26:55] [Server thread/ERROR]: [org.bukkit.configuration.serialization.ConfigurationSerialization] Could not call method 'public static org.bukkit.inventory.ItemStack org.bukkit.inventory.ItemStack.deserialize(java.util.Map)' of class org.bukkit.inventory.ItemStack for deserialization java.lang.IllegalArgumentException: Newer version! Server downgrades are not supported! at com.google.common.base.Preconditions.checkArgument(Preconditions.java:122) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.util.CraftMagicNumbers.getMaterial(CraftMagicNumbers.java:245) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.inventory.ItemStack.deserialize(ItemStack.java:504) ~[patched_1.16.5.jar:git-Paper-794] at jdk.internal.reflect.GeneratedMethodAccessor23.invoke(Unknown Source) ~[?:?] at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?] at java.lang.reflect.Method.invoke(Method.java:567) ~[?:?] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeViaMethod(ConfigurationSerialization.java:85) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserialize(ConfigurationSerialization.java:127) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeObject(ConfigurationSerialization.java:207) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:37) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructDocument(BaseConstructor.java:173) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.getSingleData(BaseConstructor.java:157) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.loadFromReader(Yaml.java:490) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.load(Yaml.java:416) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadFromString(YamlConfiguration.java:57) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:160) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:128) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadConfiguration(YamlConfiguration.java:188) ~[patched_1.16.5.jar:git-Paper-794] at com.Zrips.CMI.Modules.Kits.KitsManager.load(KitsManager.java:448) ~[?:?] at com.Zrips.CMI.CMI.onEnable(CMI.java:1516) ~[?:?] at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:263) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:370) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:500) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugin(CraftServer.java:518) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugins(CraftServer.java:432) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.loadWorld(MinecraftServer.java:599) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.DedicatedServer.init(DedicatedServer.java:298) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.w(MinecraftServer.java:1074) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.lambda$a$0(MinecraftServer.java:291) ~[patched_1.16.5.jar:git-Paper-794] at java.lang.Thread.run(Thread.java:831) [?:?] [15:26:55] [Server thread/ERROR]: [org.bukkit.configuration.serialization.ConfigurationSerialization] Could not call method 'public static org.bukkit.inventory.ItemStack org.bukkit.inventory.ItemStack.deserialize(java.util.Map)' of class org.bukkit.inventory.ItemStack for deserialization java.lang.IllegalArgumentException: Newer version! Server downgrades are not supported! at com.google.common.base.Preconditions.checkArgument(Preconditions.java:122) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.util.CraftMagicNumbers.getMaterial(CraftMagicNumbers.java:245) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.inventory.ItemStack.deserialize(ItemStack.java:504) ~[patched_1.16.5.jar:git-Paper-794] at jdk.internal.reflect.GeneratedMethodAccessor23.invoke(Unknown Source) ~[?:?] at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?] at java.lang.reflect.Method.invoke(Method.java:567) ~[?:?] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeViaMethod(ConfigurationSerialization.java:85) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserialize(ConfigurationSerialization.java:127) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeObject(ConfigurationSerialization.java:207) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:37) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructDocument(BaseConstructor.java:173) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.getSingleData(BaseConstructor.java:157) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.loadFromReader(Yaml.java:490) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.load(Yaml.java:416) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadFromString(YamlConfiguration.java:57) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:160) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:128) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadConfiguration(YamlConfiguration.java:188) ~[patched_1.16.5.jar:git-Paper-794] at com.Zrips.CMI.Modules.Kits.KitsManager.load(KitsManager.java:448) ~[?:?] at com.Zrips.CMI.CMI.onEnable(CMI.java:1516) ~[?:?] at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:263) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:370) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:500) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugin(CraftServer.java:518) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugins(CraftServer.java:432) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.loadWorld(MinecraftServer.java:599) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.DedicatedServer.init(DedicatedServer.java:298) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.w(MinecraftServer.java:1074) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.lambda$a$0(MinecraftServer.java:291) ~[patched_1.16.5.jar:git-Paper-794] at java.lang.Thread.run(Thread.java:831) [?:?] [15:26:55] [Server thread/ERROR]: [org.bukkit.configuration.serialization.ConfigurationSerialization] Could not call method 'public static org.bukkit.inventory.ItemStack org.bukkit.inventory.ItemStack.deserialize(java.util.Map)' of class org.bukkit.inventory.ItemStack for deserialization java.lang.IllegalArgumentException: Newer version! Server downgrades are not supported! at com.google.common.base.Preconditions.checkArgument(Preconditions.java:122) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.util.CraftMagicNumbers.getMaterial(CraftMagicNumbers.java:245) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.inventory.ItemStack.deserialize(ItemStack.java:504) ~[patched_1.16.5.jar:git-Paper-794] at jdk.internal.reflect.GeneratedMethodAccessor23.invoke(Unknown Source) ~[?:?] at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?] at java.lang.reflect.Method.invoke(Method.java:567) ~[?:?] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeViaMethod(ConfigurationSerialization.java:85) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserialize(ConfigurationSerialization.java:127) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeObject(ConfigurationSerialization.java:207) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:37) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructDocument(BaseConstructor.java:173) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.getSingleData(BaseConstructor.java:157) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.loadFromReader(Yaml.java:490) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.load(Yaml.java:416) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadFromString(YamlConfiguration.java:57) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:160) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:128) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadConfiguration(YamlConfiguration.java:188) ~[patched_1.16.5.jar:git-Paper-794] at com.Zrips.CMI.Modules.Kits.KitsManager.load(KitsManager.java:448) ~[?:?] at com.Zrips.CMI.CMI.onEnable(CMI.java:1516) ~[?:?] at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:263) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:370) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:500) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugin(CraftServer.java:518) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugins(CraftServer.java:432) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.loadWorld(MinecraftServer.java:599) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.DedicatedServer.init(DedicatedServer.java:298) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.w(MinecraftServer.java:1074) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.lambda$a$0(MinecraftServer.java:291) ~[patched_1.16.5.jar:git-Paper-794] at java.lang.Thread.run(Thread.java:831) [?:?] [15:26:55] [Server thread/ERROR]: [org.bukkit.configuration.serialization.ConfigurationSerialization] Could not call method 'public static org.bukkit.inventory.ItemStack org.bukkit.inventory.ItemStack.deserialize(java.util.Map)' of class org.bukkit.inventory.ItemStack for deserialization java.lang.IllegalArgumentException: Newer version! Server downgrades are not supported! at com.google.common.base.Preconditions.checkArgument(Preconditions.java:122) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.util.CraftMagicNumbers.getMaterial(CraftMagicNumbers.java:245) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.inventory.ItemStack.deserialize(ItemStack.java:504) ~[patched_1.16.5.jar:git-Paper-794] at jdk.internal.reflect.GeneratedMethodAccessor23.invoke(Unknown Source) ~[?:?] at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?] at java.lang.reflect.Method.invoke(Method.java:567) ~[?:?] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeViaMethod(ConfigurationSerialization.java:85) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserialize(ConfigurationSerialization.java:127) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeObject(ConfigurationSerialization.java:207) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:37) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructDocument(BaseConstructor.java:173) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.getSingleData(BaseConstructor.java:157) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.loadFromReader(Yaml.java:490) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.load(Yaml.java:416) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadFromString(YamlConfiguration.java:57) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:160) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:128) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadConfiguration(YamlConfiguration.java:188) ~[patched_1.16.5.jar:git-Paper-794] at com.Zrips.CMI.Modules.Kits.KitsManager.load(KitsManager.java:448) ~[?:?] at com.Zrips.CMI.CMI.onEnable(CMI.java:1516) ~[?:?] at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:263) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:370) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:500) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugin(CraftServer.java:518) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugins(CraftServer.java:432) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.loadWorld(MinecraftServer.java:599) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.DedicatedServer.init(DedicatedServer.java:298) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.w(MinecraftServer.java:1074) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.lambda$a$0(MinecraftServer.java:291) ~[patched_1.16.5.jar:git-Paper-794] at java.lang.Thread.run(Thread.java:831) [?:?] [15:26:55] [Server thread/ERROR]: [org.bukkit.configuration.serialization.ConfigurationSerialization] Could not call method 'public static org.bukkit.inventory.ItemStack org.bukkit.inventory.ItemStack.deserialize(java.util.Map)' of class org.bukkit.inventory.ItemStack for deserialization java.lang.IllegalArgumentException: Newer version! Server downgrades are not supported! at com.google.common.base.Preconditions.checkArgument(Preconditions.java:122) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.util.CraftMagicNumbers.getMaterial(CraftMagicNumbers.java:245) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.inventory.ItemStack.deserialize(ItemStack.java:504) ~[patched_1.16.5.jar:git-Paper-794] at jdk.internal.reflect.GeneratedMethodAccessor23.invoke(Unknown Source) ~[?:?] at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?] at java.lang.reflect.Method.invoke(Method.java:567) ~[?:?] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeViaMethod(ConfigurationSerialization.java:85) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserialize(ConfigurationSerialization.java:127) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeObject(ConfigurationSerialization.java:207) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:37) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructDocument(BaseConstructor.java:173) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.getSingleData(BaseConstructor.java:157) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.loadFromReader(Yaml.java:490) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.load(Yaml.java:416) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadFromString(YamlConfiguration.java:57) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:160) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:128) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadConfiguration(YamlConfiguration.java:188) ~[patched_1.16.5.jar:git-Paper-794] at com.Zrips.CMI.Modules.Kits.KitsManager.load(KitsManager.java:448) ~[?:?] at com.Zrips.CMI.CMI.onEnable(CMI.java:1516) ~[?:?] at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:263) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:370) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:500) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugin(CraftServer.java:518) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugins(CraftServer.java:432) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.loadWorld(MinecraftServer.java:599) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.DedicatedServer.init(DedicatedServer.java:298) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.w(MinecraftServer.java:1074) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.lambda$a$0(MinecraftServer.java:291) ~[patched_1.16.5.jar:git-Paper-794] at java.lang.Thread.run(Thread.java:831) [?:?] [15:26:55] [Server thread/ERROR]: [org.bukkit.configuration.serialization.ConfigurationSerialization] Could not call method 'public static org.bukkit.inventory.ItemStack org.bukkit.inventory.ItemStack.deserialize(java.util.Map)' of class org.bukkit.inventory.ItemStack for deserialization java.lang.IllegalArgumentException: Newer version! Server downgrades are not supported! at com.google.common.base.Preconditions.checkArgument(Preconditions.java:122) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.util.CraftMagicNumbers.getMaterial(CraftMagicNumbers.java:245) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.inventory.ItemStack.deserialize(ItemStack.java:504) ~[patched_1.16.5.jar:git-Paper-794] at jdk.internal.reflect.GeneratedMethodAccessor23.invoke(Unknown Source) ~[?:?] at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?] at java.lang.reflect.Method.invoke(Method.java:567) ~[?:?] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeViaMethod(ConfigurationSerialization.java:85) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserialize(ConfigurationSerialization.java:127) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeObject(ConfigurationSerialization.java:207) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:37) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:479) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:190) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:460) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:556) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:28) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.constructDocument(BaseConstructor.java:173) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.constructor.BaseConstructor.getSingleData(BaseConstructor.java:157) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.loadFromReader(Yaml.java:490) ~[patched_1.16.5.jar:git-Paper-794] at org.yaml.snakeyaml.Yaml.load(Yaml.java:416) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadFromString(YamlConfiguration.java:57) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:160) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:128) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.file.YamlConfiguration.loadConfiguration(YamlConfiguration.java:188) ~[patched_1.16.5.jar:git-Paper-794] at com.Zrips.CMI.Modules.Kits.KitsManager.load(KitsManager.java:448) ~[?:?] at com.Zrips.CMI.CMI.onEnable(CMI.java:1516) ~[?:?] at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:263) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:370) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:500) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugin(CraftServer.java:518) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugins(CraftServer.java:432) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.loadWorld(MinecraftServer.java:599) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.DedicatedServer.init(DedicatedServer.java:298) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.w(MinecraftServer.java:1074) ~[patched_1.16.5.jar:git-Paper-794] at net.minecraft.server.v1_16_R3.MinecraftServer.lambda$a$0(MinecraftServer.java:291) ~[patched_1.16.5.jar:git-Paper-794] at java.lang.Thread.run(Thread.java:831) [?:?] [15:26:55] [Server thread/INFO]: Loaded (6) kits into memory. Took 45ms [15:26:55] [Server thread/INFO]: Loaded (7) ranks into memory. Took 10ms [15:26:55] [Server thread/INFO]: Loaded (8) playtime rewards into memory. Took 2ms [15:26:55] [Server thread/INFO]: Loaded (11) player data into memory. Took 9ms [15:26:55] [Server thread/INFO]: Loaded (0) playtime records into memory. Took 1ms [15:26:55] [Server thread/INFO]: Loaded (0) playtime reward records into memory. Took 0ms [15:26:55] [Server thread/INFO]: Loaded (0) custom alias into memory. Took 0ms [15:26:55] [Server thread/INFO]: Registered events. Took 109ms [15:26:55] [Server thread/INFO]: Loaded (0) event action commands into memory. Took 4ms [15:26:55] [PvPManager Worker Thread - 0/INFO]: [PvPManager] Checking for updates... [15:26:55] [Server thread/INFO]: Loaded (EN) language file into memory. Took 265ms [15:26:55] [PvPManager Worker Thread - 0/INFO]: [PvPManager] No update found [15:26:55] [Server thread/INFO]: Loaded (RU) language file into memory. Took 143ms [15:26:56] [Server thread/INFO]: Loaded (245) worth values into memory. Took 19ms [15:26:56] [Server thread/INFO]: Loaded (5) warps into memory. Took 1ms [15:26:56] [Server thread/INFO]: VaultPermissions found. (Loaded: true) [15:26:56] [Server thread/INFO]: [PlaceholderAPI] Successfully registered internal expansion: cmi [**.**.**.**] [15:26:56] [Server thread/INFO]: PlaceholderAPI hooked. [15:26:56] [Server thread/INFO]: PlaceholderAPI found. (Loaded: true) [15:26:56] [Server thread/INFO]: Starting world timer. [15:26:56] [Server thread/INFO]: Initializing world manager. [15:26:56] [Server thread/INFO]: Loaded (4) schedules into memory. Took 11ms [15:26:56] [Server thread/INFO]: Loaded GeoIP [15:26:56] [Server thread/INFO]: Loaded (0) skin cache entries into memory. Took 1ms [15:26:56] [Server thread/INFO]: Loaded (0) ArmorStand templates into memory. Took 0ms [15:26:56] [Server thread/INFO]: Version 9.6.9.9 has been enabled [15:26:56] [Server thread/INFO]: ‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾ [15:26:56] [Server thread/INFO]: [PlaceholderAPI] Placeholder expansion registration initializing... [15:26:56] [Server thread/INFO]: Starting remote control listener [15:26:56] [Server thread/INFO]: Thread RCON Listener started [15:26:56] [Server thread/INFO]: RCON running on 0.0.0.0:4838 [15:26:56] [Server thread/INFO]: Running delayed init tasks [15:26:56] [Server thread/INFO]: [PlaceholderAPI] Successfully registered internal expansion: playerpoints [3.3.0] [15:26:56] [Craft Scheduler Thread - 15/INFO]: [ChatEx] Checking for update... [15:26:56] [Craft Scheduler Thread - 17/INFO]: [Vault] Checking for Updates ... [15:26:56] [Craft Scheduler Thread - 17/INFO]: [Vault] No new version available [15:26:56] [Craft Scheduler Thread - 9/INFO]: [XItemsRemover] The latest version of the plugin is used. [15:26:56] [Craft Scheduler Thread - 15/INFO]: [ChatEx] Version installed is 3.2.2 [15:26:56] [Craft Scheduler Thread - 15/INFO]: [ChatEx] Latest version found online is 3.2.2 [15:26:56] [Craft Scheduler Thread - 15/INFO]: [ChatEx] No update found. [15:26:56] [Craft Scheduler Thread - 4/INFO]: New version of CMILib was detected. Please update it [15:26:56] [Server thread/INFO]: [PlaceholderAPI] Successfully registered external expansion: statistic [2.0.1] [15:26:56] [Server thread/WARN]: [PlaceholderAPI] Cannot load expansion playerstats due to a missing plugin: PlayerStats [15:26:56] [Server thread/INFO]: [PlaceholderAPI] Successfully registered external expansion: player [2.0.8] [15:26:56] [Server thread/INFO]: [PlaceholderAPI] Successfully registered external expansion: expirytime [1.2] [15:26:56] [Server thread/INFO]: [PlaceholderAPI] Successfully registered external expansion: luckperms [5.4-R2] [15:26:56] [Server thread/INFO]: 4 placeholder hook(s) registered! [15:26:56] [Server thread/INFO]: Done (32.469s)! For help, type "help" [15:26:56] [Server thread/INFO]: Timings Reset [15:26:56] [Craft Scheduler Thread - 5/INFO]: [Blue Slime Core] [15:26:56] [Craft Scheduler Thread - 5/INFO]: [Blue Slime Core] [Update Checker] Found a possible update for plugin 'BlueSlimeCore'. [15:26:56] [Craft Scheduler Thread - 5/INFO]: [Blue Slime Core] [Update Checker] Local Version: 2.9.6.431 [15:26:56] [Craft Scheduler Thread - 5/INFO]: [Blue Slime Core] [Update Checker] Remote Version: 2.9.6.448 [15:26:56] [Craft Scheduler Thread - 5/INFO]: [Blue Slime Core] [Update Checker] Download Link: https://hangar.papermc.io/SirBlobman/BlueSlimeCore [15:26:57] [Craft Scheduler Thread - 12/INFO]: Checking for updates via Spigot... [15:26:57] [Craft Scheduler Thread - 12/INFO]: [CratesPlus] No update was found, you are running the latest version. Will check again later. [15:26:58] [Server thread/INFO]: com.mojang.authlib.GameProfile@46187391[id=,name=marazm0,properties={},legacy=false] (/**.**.**.**:53566) lost connection: Disconnected [15:29:21] [User Authenticator #1/INFO]: UUID of player keshhovsky is a46a7292-5982-36d0-b8de-264998e73252 [15:29:21] [Server thread/INFO]: keshhovsky[/**.**.**.**:34816] logged in with entity id 277 at ([world]-210.95401091090096, 89.65687362338166, -73.50710338584634) [15:29:22] [Craft Scheduler Thread - 15/ERROR]: [org.bukkit.configuration.serialization.ConfigurationSerialization] Could not call method 'public static org.bukkit.inventory.ItemStack org.bukkit.inventory.ItemStack.deserialize(java.util.Map)' of class org.bukkit.inventory.ItemStack for deserialization java.lang.IllegalArgumentException: Newer version! Server downgrades are not supported! at com.google.common.base.Preconditions.checkArgument(Preconditions.java:122) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.util.CraftMagicNumbers.getMaterial(CraftMagicNumbers.java:245) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.inventory.ItemStack.deserialize(ItemStack.java:504) ~[patched_1.16.5.jar:git-Paper-794] at jdk.internal.reflect.GeneratedMethodAccessor23.invoke(Unknown Source) ~[?:?] at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?] at java.lang.reflect.Method.invoke(Method.java:567) ~[?:?] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeViaMethod(ConfigurationSerialization.java:85) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserialize(ConfigurationSerialization.java:127) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeObject(ConfigurationSerialization.java:207) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.util.io.BukkitObjectInputStream.resolveObject(BukkitObjectInputStream.java:49) ~[patched_1.16.5.jar:git-Paper-794] at java.io.ObjectInputStream.checkResolve(ObjectInputStream.java:1740) ~[?:?] at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1689) ~[?:?] at java.io.ObjectInputStream.readObject(ObjectInputStream.java:495) ~[?:?] at java.io.ObjectInputStream.readObject(ObjectInputStream.java:453) ~[?:?] at me.davidml16.acubelets.utils.XSeries.XItemStack.itemStackFromBase64(XItemStack.java:753) ~[?:?] at me.davidml16.acubelets.objects.loothistory.RewardHistory.(RewardHistory.java:24) ~[?:?] at me.davidml16.acubelets.database.DatabaseHandler.lambda$getLootHistory$27(DatabaseHandler.java:890) ~[?:?] at org.bukkit.craftbukkit.v1_16_R3.scheduler.CraftTask.run(CraftTask.java:101) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.scheduler.CraftAsyncTask.run(CraftAsyncTask.java:54) ~[patched_1.16.5.jar:git-Paper-794] at com.destroystokyo.paper.ServerSchedulerReportingWrapper.run(ServerSchedulerReportingWrapper.java:22) ~[patched_1.16.5.jar:git-Paper-794] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1130) ~[?:?] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:630) ~[?:?] at java.lang.Thread.run(Thread.java:831) [?:?] [15:29:22] [Craft Scheduler Thread - 15/ERROR]: [org.bukkit.configuration.serialization.ConfigurationSerialization] Could not call method 'public static org.bukkit.inventory.ItemStack org.bukkit.inventory.ItemStack.deserialize(java.util.Map)' of class org.bukkit.inventory.ItemStack for deserialization java.lang.IllegalArgumentException: Newer version! Server downgrades are not supported! at com.google.common.base.Preconditions.checkArgument(Preconditions.java:122) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.util.CraftMagicNumbers.getMaterial(CraftMagicNumbers.java:245) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.inventory.ItemStack.deserialize(ItemStack.java:504) ~[patched_1.16.5.jar:git-Paper-794] at jdk.internal.reflect.GeneratedMethodAccessor23.invoke(Unknown Source) ~[?:?] at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?] at java.lang.reflect.Method.invoke(Method.java:567) ~[?:?] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeViaMethod(ConfigurationSerialization.java:85) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserialize(ConfigurationSerialization.java:127) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.configuration.serialization.ConfigurationSerialization.deserializeObject(ConfigurationSerialization.java:207) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.util.io.BukkitObjectInputStream.resolveObject(BukkitObjectInputStream.java:49) ~[patched_1.16.5.jar:git-Paper-794] at java.io.ObjectInputStream.checkResolve(ObjectInputStream.java:1740) ~[?:?] at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1689) ~[?:?] at java.io.ObjectInputStream.readObject(ObjectInputStream.java:495) ~[?:?] at java.io.ObjectInputStream.readObject(ObjectInputStream.java:453) ~[?:?] at me.davidml16.acubelets.utils.XSeries.XItemStack.itemStackFromBase64(XItemStack.java:753) ~[?:?] at me.davidml16.acubelets.objects.loothistory.RewardHistory.(RewardHistory.java:24) ~[?:?] at me.davidml16.acubelets.database.DatabaseHandler.lambda$getLootHistory$27(DatabaseHandler.java:890) ~[?:?] at org.bukkit.craftbukkit.v1_16_R3.scheduler.CraftTask.run(CraftTask.java:101) ~[patched_1.16.5.jar:git-Paper-794] at org.bukkit.craftbukkit.v1_16_R3.scheduler.CraftAsyncTask.run(CraftAsyncTask.java:54) ~[patched_1.16.5.jar:git-Paper-794] at com.destroystokyo.paper.ServerSchedulerReportingWrapper.run(ServerSchedulerReportingWrapper.java:22) ~[patched_1.16.5.jar:git-Paper-794] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1130) ~[?:?] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:630) ~[?:?] at java.lang.Thread.run(Thread.java:831) [?:?] [15:29:30] [Server thread/INFO]: keshhovsky issued server command: /whitelist no [15:29:32] [Server thread/INFO]: keshhovsky issued server command: /whitelist on [15:29:32] [Server thread/INFO]: [keshhovsky: Whitelist is now turned on] [15:29:33] [Server thread/INFO]: keshhovsky issued server command: /mw [15:29:38] [Server thread/INFO]: keshhovsky issued server command: /multiverse-core:mv [15:29:39] [Server thread/INFO]: keshhovsky issued server command: /multiverse-core:mv tp [15:29:42] [Server thread/INFO]: keshhovsky issued server command: /multiverse-core:mv tp spawn [15:29:54] [Server thread/INFO]: keshhovsky issued server command: /worldguard [15:29:56] [Server thread/INFO]: keshhovsky issued server command: /rg i [15:30:05] [Server thread/INFO]: keshhovsky issued server command: /pl [15:30:20] [WorldGuard Region I/O/INFO]: [WorldGuard] Region data changes made in 'world' have been background saved [15:30:29] [Server thread/INFO]: keshhovsky has made the advancement [Monster Hunter]