[00:11:56 ERROR]: [ItemsAdder] Failed to find nms implementation for: interface
ia.m.ms
[00:11:56 ERROR]: Error occurred while enabling ItemsAdder v3.6.3-beta-13 (Is it
up to date?)
java.lang.RuntimeException: null
at ia.m.iS.a(SourceFile:137) ~[ItemsAdder_3.6.3-beta-13 (1).jar:?]
at ia.m.iS.a(SourceFile:45) ~[ItemsAdder_3.6.3-beta-13 (1).jar:?]
at ia.m.iS.b(SourceFile:36) ~[ItemsAdder_3.6.3-beta-13 (1).jar:?]
at ia.m.mt.<init>(SourceFile:35) ~[ItemsAdder_3.6.3-beta-13 (1).jar:?]
at ia.m.mt.init(SourceFile:51) ~[ItemsAdder_3.6.3-beta-13 (1).jar:?]
at dev.lone.itemsadder.Main.onEnable(SourceFile:219) ~[ItemsAdder_3.6.3-
beta-13 (1).jar:?]
at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:287) ~[p
aper-api-1.20.4-R0.1-SNAPSHOT.jar:?]
at io.papermc.paper.plugin.manager.PaperPluginInstanceManager.enablePlug
in(PaperPluginInstanceManager.java:188) ~[paper-1.20.4.jar:git-Paper-497]
at io.papermc.paper.plugin.manager.PaperPluginManagerImpl.enablePlugin(P
aperPluginManagerImpl.java:104) ~[paper-1.20.4.jar:git-Paper-497]
at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManage
r.java:507) ~[paper-api-1.20.4-R0.1-SNAPSHOT.jar:?]
at org.bukkit.craftbukkit.v1_20_R3.CraftServer.enablePlugin(CraftServer.
java:639) ~[paper-1.20.4.jar:git-Paper-497]
at org.bukkit.craftbukkit.v1_20_R3.CraftServer.enablePlugins(CraftServer
.java:550) ~[paper-1.20.4.jar:git-Paper-497]
at net.minecraft.server.MinecraftServer.loadWorld0(MinecraftServer.java:
671) ~[paper-1.20.4.jar:git-Paper-497]
at net.minecraft.server.MinecraftServer.loadLevel(MinecraftServer.java:4
31) ~[paper-1.20.4.jar:git-Paper-497]
at net.minecraft.server.dedicated.DedicatedServer.initServer(DedicatedSe
rver.java:309) ~[paper-1.20.4.jar:git-Paper-497]
at net.minecraft.server.MinecraftServer.runServer(MinecraftServer.java:1
131) ~[paper-1.20.4.jar:git-Paper-497]
at net.minecraft.server.MinecraftServer.lambda$spin$0(MinecraftServer.ja
va:319) ~[paper-1.20.4.jar:git-Paper-497]
at java.lang.Thread.run(Thread.java:1583) ~[?:?]
Server Version: 1.20.4
ItemsAdder Version: ItemsAdder_3.6.3-beta-13
How can i fix it?