*** Warning, you've not updated in a while! *** *** Please download a new build as per instructions from https://papermc.io/downloads *** System Info: Java 16 (Java HotSpot(TM) 64-Bit Server VM 16+36-2231) Host: Windows 10 10.0 (amd64) Loading libraries, please wait... [15:44:38 INFO]: Environment: authHost='https://authserver.mojang.com', accountsHost='https://api.mojang.com', sessionHost='https://sessionserver.mojang.com', servicesHost='https://api.minecraftservices.com', name='PROD' [15:44:38 INFO]: Reloading ResourceManager: Default, bukkit [15:44:39 INFO]: Loaded 7 recipes [15:44:40 INFO]: Starting minecraft server version 1.17.1 [15:44:40 INFO]: Loading properties [15:44:40 INFO]: This server is running Paper version git-Paper-263 (MC: 1.17.1) (Implementing API version 1.17.1-R0.1-SNAPSHOT) (Git: 3069eae) [15:44:40 INFO]: Server Ping Player Sample Count: 12 [15:44:40 INFO]: Using 4 threads for Netty based IO [15:44:40 INFO]: Default game type: SURVIVAL [15:44:40 INFO]: Generating keypair [15:44:40 INFO]: Starting Minecraft server on *:25565 [15:44:40 INFO]: Using default channel type [15:44:40 INFO]: Paper: Using Java 11 compression from Velocity. [15:44:40 INFO]: Paper: Using Java cipher from Velocity. [15:44:41 ERROR]: Encountered an unexpected exception java.lang.SecurityException: Invalid signature file digest for Manifest main attributes at sun.security.util.SignatureFileVerifier.processImpl(SignatureFileVerifier.java:358) ~[?:?] at sun.security.util.SignatureFileVerifier.process(SignatureFileVerifier.java:291) ~[?:?] at java.util.jar.JarVerifier.processEntry(JarVerifier.java:316) ~[?:?] at java.util.jar.JarVerifier.update(JarVerifier.java:230) ~[?:?] at java.util.jar.JarFile.initializeVerifier(JarFile.java:758) ~[?:?] at java.util.jar.JarFile.getInputStream(JarFile.java:841) ~[?:?] at org.bukkit.plugin.java.JavaPluginLoader.getPluginDescription(JavaPluginLoader.java:181) ~[patched_1.17.1.jar:git-Paper-263] at org.bukkit.plugin.SimplePluginManager.loadPlugins(SimplePluginManager.java:160) ~[patched_1.17.1.jar:git-Paper-263] at org.bukkit.craftbukkit.v1_17_R1.CraftServer.loadPlugins(CraftServer.java:410) ~[patched_1.17.1.jar:git-Paper-263] at net.minecraft.server.dedicated.DedicatedServer.init(DedicatedServer.java:276) ~[patched_1.17.1.jar:git-Paper-263] at net.minecraft.server.MinecraftServer.x(MinecraftServer.java:1212) ~[patched_1.17.1.jar:git-Paper-263] at net.minecraft.server.MinecraftServer.lambda$spin$0(MinecraftServer.java:319) ~[patched_1.17.1.jar:git-Paper-263] at java.lang.Thread.run(Thread.java:831) [?:?] [15:44:41 ERROR]: This crash report has been saved to: C:\Users\JensC\Desktop\1.16.5 paper\.\crash-reports\crash-2021-11-19_15.44.41-server.txt [15:44:41 INFO]: Stopping server [15:44:41 INFO]: Saving players [15:44:41 INFO]: Saving worlds [15:44:41 INFO]: ThreadedAnvilChunkStorage: All dimensions are saved [15:44:41 INFO]: Flushing Chunk IO > [15:44:41 INFO]: Closing Thread Pool [15:44:41 INFO]: Closing Server Press any key to continue . . .