Java.util.zip.ZipError: zip END header not found
at com.sun.nio.zipfs.ZipFileSystem.zerror(ZipFileSystem.java:1651) ~[zipfs.jar:1.8.0_272]
at com.sun.nio.zipfs.ZipFileSystem.findEND(ZipFileSystem.java:1040) ~[zipfs.jar:1.8.0_272]
at com.sun.nio.zipfs.ZipFileSystem.initCEN(ZipFileSystem.java:1049) ~[zipfs.jar:1.8.0_272]
at com.sun.nio.zipfs.ZipFileSystem.(ZipFileSystem.java:130) ~[zipfs.jar:1.8.0_272]
at com.sun.nio.zipfs.ZipFileSystemProvider.newFileSystem(ZipFileSystemProvider.java:139) ~[zipfs.jar:1.8.0_272]
at java.nio.file.FileSystems.newFileSystem(FileSystems.java:390) ~[?:1.8.0_272]
at me.RockinChaos.itemjoin.ItemJoinL10.a(Unknown Source) ~[?:?]
at me.RockinChaos.itemjoin.ItemJoin.onEnable(ItemJoin.java) ~[?:?]
at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:321) ~[patched.jar: git-PaperSpigot-"4c7641d"]
at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:332) [patched.jar: git-PaperSpigot-"4c7641d"]
at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:407) [patched.jar: git-PaperSpigot-"4c7641d"]
at org.bukkit.craftbukkit.v1_8_R3.CraftServer.loadPlugin(CraftServer.java:359) [patched.jar: git-PaperSpigot-"4c7641d"]
at org.bukkit.craftbukkit.v1_8_R3.CraftServer.enablePlugins(CraftServer.java:318) [patched.jar: git-PaperSpigot-"4c7641d"]
at net.minecraft.server.v1_8_R3.MinecraftServer.s(MinecraftServer.java:408) [patched.jar: git-PaperSpigot-"4c7641d"]
at net.minecraft.server.v1_8_R3.MinecraftServer.k(MinecraftServer.java:372) [patched.jar: git-PaperSpigot-"4c7641d"]
at net.minecraft.server.v1_8_R3.MinecraftServer.a(MinecraftServer.java:327) [patched.jar: git-PaperSpigot-"4c7641d"]
at net.minecraft.server.v1_8_R3.DedicatedServer.init(DedicatedServer.java:267) [patched.jar: git-PaperSpigot-"4c7641d"]
at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:563) [patched.jar: git-PaperSpigot-"4c7641d"]
at java.lang.Thread.run(Thread.java:748) [?:1.8.0_272]
У тебя один из плагинов в zip, удаляй его