error while loading plugin - 1.20.4 paper with all dependencies downloaded

[shellduck8]

[14:02:46] [Server thread/ERROR]: Error occurred while enabling CustomDiscs v2.6 (Is it up to date?)

39 | java.lang.NoClassDefFoundError: de/maxhenkel/voicechat/api/BukkitVoicechatService
40 | at me.Navoei.customdiscsplugin.CustomDiscs.onEnable(CustomDiscs.java:44) ~[custom-discs-2.6.1.jar:?]
41 | at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:287) ~[paper-api-1.20.4-R0.1-SNAPSHOT.jar:?]
42 | at io.papermc.paper.plugin.manager.PaperPluginInstanceManager.enablePlugin(PaperPluginInstanceManager.java:188) ~[paper-1.20.4.jar:git-Paper-497]
43 | at io.papermc.paper.plugin.manager.PaperPluginManagerImpl.enablePlugin(PaperPluginManagerImpl.java:104) ~[paper-1.20.4.jar:git-Paper-497]
44 | at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:507) ~[paper-api-1.20.4-R0.1-SNAPSHOT.jar:?]
45 | at org.bukkit.craftbukkit.v1_20_R3.CraftServer.enablePlugin(CraftServer.java:639) ~[paper-1.20.4.jar:git-Paper-497]
46 | at org.bukkit.craftbukkit.v1_20_R3.CraftServer.enablePlugins(CraftServer.java:550) ~[paper-1.20.4.jar:git-Paper-497]
47 | at net.minecraft.server.MinecraftServer.loadWorld0(MinecraftServer.java:671) ~[paper-1.20.4.jar:git-Paper-497]
48 | at net.minecraft.server.MinecraftServer.loadLevel(MinecraftServer.java:431) ~[paper-1.20.4.jar:git-Paper-497]
49 | at net.minecraft.server.dedicated.DedicatedServer.initServer(DedicatedServer.java:309) ~[paper-1.20.4.jar:git-Paper-497]
50 | at net.minecraft.server.MinecraftServer.runServer(MinecraftServer.java:1131) ~[paper-1.20.4.jar:git-Paper-497]
51 | at net.minecraft.server.MinecraftServer.lambda$spin$0(MinecraftServer.java:319) ~[paper-1.20.4.jar:git-Paper-497]
52 | at java.lang.Thread.run(Thread.java:840) ~[?:?]
53 | Caused by: java.lang.ClassNotFoundException: de.maxhenkel.voicechat.api.BukkitVoicechatService
54 | at org.bukkit.plugin.java.PluginClassLoader.loadClass0(PluginClassLoader.java:197) ~[paper-api-1.20.4-R0.1-SNAPSHOT.jar:?]
55 | at org.bukkit.plugin.java.PluginClassLoader.loadClass(PluginClassLoader.java:164) ~[paper-api-1.20.4-R0.1-SNAPSHOT.jar:?]
56 | at java.lang.ClassLoader.loadClass(ClassLoader.java:525) ~[?:?]
57 | ... 13 more

[Athar42]

With so much details, that'll be hard to help...

Can you list, at least, all the plugins you have on your server ? 😊

Pretty sure you forget "voicechat-bukkit" in your plugins (or use the incorrect version).