[16:28:47] [Server thread/INFO]: [ItemsAdder] Enabling ItemsAdder v4.0.11
[16:28:48] [Server thread/WARN]: [ItemsAdder] LoneLibs is enabled. This plugin is not needed anymore and it's recommended to remove it (if you are not using it for other plugins).
[16:28:48] [Server thread/ERROR]: [ItemsAdder] Can't instantiate NMS wrapper
[16:28:48] [Server thread/ERROR]: [ItemsAdder] This server version is not compatible with this plugin.
[16:28:48] [Server thread/ERROR]: Error occurred while enabling ItemsAdder v4.0.11 (Is it up to date?)
java.lang.RuntimeException: Failed to create instance for class: null
at ItemsAdder_4.0.11.jar/itemsadder.m.sm.m(SourceFile:396) ~[ItemsAdder_4.0.11.jar:?]
at ItemsAdder_4.0.11.jar/itemsadder.m.xk.<init>(SourceFile:36) ~[ItemsAdder_4.0.11.jar:?]
at ItemsAdder_4.0.11.jar/itemsadder.m.xk.init(SourceFile:52) ~[ItemsAdder_4.0.11.jar:?]
at ItemsAdder_4.0.11.jar/dev.lone.itemsadder.Main.onEnable(SourceFile:174) ~[ItemsAdder_4.0.11.jar:?]
at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:288) ~[paper-api-1.21-R0.1-SNAPSHOT.jar:?]
at io.papermc.paper.plugin.manager.PaperPluginInstanceManager.enablePlugin(PaperPluginInstanceManager.java:202) ~[paper-1.21.jar:1.21-130-b1b5d4c]
at io.papermc.paper.plugin.manager.PaperPluginManagerImpl.enablePlugin(PaperPluginManagerImpl.java:109) ~[paper-1.21.jar:1.21-130-b1b5d4c]
at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:520) ~[paper-api-1.21-R0.1-SNAPSHOT.jar:?]
at org.bukkit.craftbukkit.CraftServer.enablePlugin(CraftServer.java:640) ~[paper-1.21.jar:1.21-130-b1b5d4c]
at org.bukkit.craftbukkit.CraftServer.enablePlugins(CraftServer.java:589) ~[paper-1.21.jar:1.21-130-b1b5d4c]
at net.minecraft.server.MinecraftServer.loadWorld0(MinecraftServer.java:754) ~[paper-1.21.jar:1.21-130-b1b5d4c]
at net.minecraft.server.MinecraftServer.loadLevel(MinecraftServer.java:516) ~[paper-1.21.jar:1.21-130-b1b5d4c]
at net.minecraft.server.dedicated.DedicatedServer.initServer(DedicatedServer.java:329) ~[paper-1.21.jar:1.21-130-b1b5d4c]
at net.minecraft.server.MinecraftServer.runServer(MinecraftServer.java:1215) ~[paper-1.21.jar:1.21-130-b1b5d4c]
at net.minecraft.server.MinecraftServer.lambda$spin$0(MinecraftServer.java:330) ~[paper-1.21.jar:1.21-130-b1b5d4c]
at java.base/java.lang.Thread.run(Thread.java:1583) ~[?:?]
Caused by: java.lang.ClassNotFoundException: dev.lone.itemsadder.nms.packets.impl.Packets_v1_21
at org.bukkit.plugin.java.PluginClassLoader.loadClass0(PluginClassLoader.java:197) ~[paper-api-1.21-R0.1-SNAPSHOT.jar:?]
at org.bukkit.plugin.java.PluginClassLoader.loadClass(PluginClassLoader.java:164) ~[paper-api-1.21-R0.1-SNAPSHOT.jar:?]
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:526) ~[?:?]
at java.base/java.lang.Class.forName0(Native Method) ~[?:?]
at java.base/java.lang.Class.forName(Class.java:534) ~[?:?]
at java.base/java.lang.Class.forName(Class.java:513) ~[?:?]
at io.papermc.reflectionrewriter.runtime.AbstractDefaultRulesReflectionProxy.forName(AbstractDefaultRulesReflectionProxy.java:68) ~[reflection-rewriter-runtime-0.0.3.jar:?]
at io.papermc.paper.pluginremap.reflect.PaperReflectionHolder.forName(Unknown Source) ~[paper-1.21.jar:1.21-130-b1b5d4c]
at ItemsAdder_4.0.11.jar/itemsadder.m.sm.l(SourceFile:243) ~[ItemsAdder_4.0.11.jar:?]
at ItemsAdder_4.0.11.jar/itemsadder.m.sm.m(SourceFile:383) ~[ItemsAdder_4.0.11.jar:?]
... 15 more
[16:28:48] [Server thread/INFO]: [ItemsAdder] Disabling ItemsAdder v4.0.11