[21:02:44] [Server thread/INFO]: [ItemsAdder] Enabling ItemsAdder v4.0.15
[21:02:45] [Server thread/ERROR]: Error occurred while enabling ItemsAdder v4.0.15 (Is it up to date?)
java.lang.NullPointerException: Cannot invoke "beer.devs.fastnbt.nms.Version.ordinal()" because the return value of "beer.devs.fastnbt.nms.Version.get()" is null
at ItemsAdder_4.0.15 (3).jar//itemsadder.m.xx.qL(SourceFile:59) ~[?:?]
at ItemsAdder_4.0.15 (3).jar//itemsadder.m.xx.qM(SourceFile:85) ~[?:?]
at ItemsAdder_4.0.15 (3).jar//dev.lone.itemsadder.Main.onEnable(SourceFile:183) ~[?:?]
at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:279) ~[paper-api-1.21.11-R0.1-SNAPSHOT.jar:?]
at io.papermc.paper.plugin.manager.PaperPluginInstanceManager.enablePlugin(PaperPluginInstanceManager.java:202) ~[paper-1.21.11.jar:1.21.11-69-94d0c97]
at io.papermc.paper.plugin.manager.PaperPluginManagerImpl.enablePlugin(PaperPluginManagerImpl.java:109) ~[paper-1.21.11.jar:1.21.11-69-94d0c97]
at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:520) ~[paper-api-1.21.11-R0.1-SNAPSHOT.jar:?]
at org.bukkit.craftbukkit.CraftServer.enablePlugin(CraftServer.java:639) ~[paper-1.21.11.jar:1.21.11-69-94d0c97]
at org.bukkit.craftbukkit.CraftServer.enablePlugins(CraftServer.java:596) ~[paper-1.21.11.jar:1.21.11-69-94d0c97]
at net.minecraft.server.MinecraftServer.initPostWorld(MinecraftServer.java:636) ~[paper-1.21.11.jar:1.21.11-69-94d0c97]
at net.minecraft.server.dedicated.DedicatedServer.initServer(DedicatedServer.java:365) ~[paper-1.21.11.jar:1.21.11-69-94d0c97]
at net.minecraft.server.MinecraftServer.runServer(MinecraftServer.java:1260) ~[paper-1.21.11.jar:1.21.11-69-94d0c97]
at net.minecraft.server.MinecraftServer.lambda$spin$2(MinecraftServer.java:388) ~[paper-1.21.11.jar:1.21.11-69-94d0c97]
at java.base/java.lang.Thread.run(Thread.java:1474) ~[?:?]
[21:02:45] [Server thread/INFO]: [ItemsAdder] Disabling ItemsAdder v4.0.15