Help request

Problem
While loading the plugin I get the following error message in the console:

java.lang.NullPointerException: Cannot invoke "at.pcgamingfreaks.Minepacks.Bukkit.Command.CommandManager.close()" because "this.commandManager" is null at at.pcgamingfreaks.Minepacks.Bukkit.Minepacks.unload(Minepacks.java:246) ~[Minepacks.jar:?] at at.pcgamingfreaks.Minepacks.Bukkit.Minepacks.onDisable(Minepacks.java:176) ~[Minepacks.jar:?] at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:266) ~[purpur-api-1.18.2-R0.1-SNAPSHOT.jar:?] at org.bukkit.plugin.java.JavaPluginLoader.disablePlugin(JavaPluginLoader.java:401) ~[purpur-api-1.18.2-R0.1-SNAPSHOT.jar:?] at org.bukkit.plugin.SimplePluginManager.disablePlugin(SimplePluginManager.java:578) ~[purpur-api-1.18.2-R0.1-SNAPSHOT.jar:?] at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:376) ~[purpur-api-1.18.2-R0.1-SNAPSHOT.jar:?] at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:541) ~[purpur-api-1.18.2-R0.1-SNAPSHOT.jar:?] at at.pcgamingfreaks.Minepacks.Bukkit.BadRabbit.onLoad(BadRabbit.java:78) ~[Minepacks.jar:?] at com.rylinaux.plugman.util.BukkitPluginUtil.load(BukkitPluginUtil.java:412) ~[PlugManX.jar:?] at com.rylinaux.plugman.util.BukkitPluginUtil.load(BukkitPluginUtil.java:370) ~[PlugManX.jar:?] at com.rylinaux.plugman.util.BukkitPluginUtil.reload(BukkitPluginUtil.java:485) ~[PlugManX.jar:?] at com.rylinaux.plugman.command.ReloadCommand.execute(ReloadCommand.java:120) ~[PlugManX.jar:?] at com.rylinaux.plugman.PlugManCommandHandler.onCommand(PlugManCommandHandler.java:98) ~[PlugManX.jar:?] at org.bukkit.command.PluginCommand.execute(PluginCommand.java:45) ~[purpur-api-1.18.2-R0.1-SNAPSHOT.jar:?] at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:172) ~[purpur-api-1.18.2-R0.1-SNAPSHOT.jar:?] at org.bukkit.craftbukkit.v1_18_R2.CraftServer.dispatchCommand(CraftServer.java:906) ~[purpur-1.18.2.jar:git-Purpur-1632] at net.minecraft.server.network.ServerGamePacketListenerImpl.handleCommand(ServerGamePacketListenerImpl.java:2390) ~[?:?] at net.minecraft.server.network.ServerGamePacketListenerImpl.handleChat(ServerGamePacketListenerImpl.java:2201) ~[?:?] at net.minecraft.server.network.ServerGamePacketListenerImpl.handleChat(ServerGamePacketListenerImpl.java:2182) ~[?:?] at net.minecraft.network.protocol.game.ServerboundChatPacket.handle(ServerboundChatPacket.java:46) ~[?:?] at net.minecraft.network.protocol.game.ServerboundChatPacket.a(ServerboundChatPacket.java:6) ~[?:?] at net.minecraft.network.protocol.PacketUtils.lambda$ensureRunningOnSameThread$1(PacketUtils.java:51) ~[?:?] at net.minecraft.server.TickTask.run(TickTask.java:18) ~[purpur-1.18.2.jar:git-Purpur-1632] at net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:153) ~[?:?] at net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:24) ~[?:?] at net.minecraft.server.MinecraftServer.doRunTask(MinecraftServer.java:1427) ~[purpur-1.18.2.jar:git-Purpur-1632] at net.minecraft.server.MinecraftServer.d(MinecraftServer.java:188) ~[purpur-1.18.2.jar:git-Purpur-1632] at net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:126) ~[?:?] at net.minecraft.server.MinecraftServer.pollTaskInternal(MinecraftServer.java:1404) ~[purpur-1.18.2.jar:git-Purpur-1632] at net.minecraft.server.MinecraftServer.pollTask(MinecraftServer.java:1397) ~[purpur-1.18.2.jar:git-Purpur-1632] at net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:114) ~[?:?] at net.minecraft.server.MinecraftServer.tickServer(MinecraftServer.java:1531) ~[purpur-1.18.2.jar:git-Purpur-1632] at net.minecraft.server.MinecraftServer.runServer(MinecraftServer.java:1247) ~[purpur-1.18.2.jar:git-Purpur-1632] at net.minecraft.server.MinecraftServer.lambda$spin$1(MinecraftServer.java:321) ~[purpur-1.18.2.jar:git-Purpur-1632] at java.lang.Thread.run(Thread.java:833) ~[?:?]

What I have tried
I tried loading it via PlugmanX and with restarting the server.
I tried older versions as well.
I tried it with PCGF_PluginLib-1.0.39-SNAPSHOT.jar as well (no success).

Maybe you know a solution or have a clue what I might be doing wrong.

When using the Standalone Version I got the following errror:

java.lang.NullPointerException: Cannot invoke "at.pcgamingfreaks.MinepacksStandalone.Bukkit.Command.CommandManager.close()" because "this.commandManager" is null
at at.pcgamingfreaks.MinepacksStandalone.Bukkit.Minepacks.unload(Minepacks.java:254) ~[Minepacks-2.4.19.jar:?]
at at.pcgamingfreaks.MinepacksStandalone.Bukkit.Minepacks.onDisable(Minepacks.java:184) ~[Minepacks-2.4.19.jar:?]
at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:266) ~[purpur-api-1.18.2-R0.1-SNAPSHOT.jar:?]
at org.bukkit.plugin.java.JavaPluginLoader.disablePlugin(JavaPluginLoader.java:401) ~[purpur-api-1.18.2-R0.1-SNAPSHOT.jar:?]
at org.bukkit.plugin.SimplePluginManager.disablePlugin(SimplePluginManager.java:578) ~[purpur-api-1.18.2-R0.1-SNAPSHOT.jar:?]
at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:376) ~[purpur-api-1.18.2-R0.1-SNAPSHOT.jar:?]
at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:541) ~[purpur-api-1.18.2-R0.1-SNAPSHOT.jar:?]
at com.rylinaux.plugman.util.BukkitPluginUtil.load(BukkitPluginUtil.java:413) ~[PlugManX.jar:?]
at com.rylinaux.plugman.command.LoadCommand.execute(LoadCommand.java:116) ~[PlugManX.jar:?]
at com.rylinaux.plugman.PlugManCommandHandler.onCommand(PlugManCommandHandler.java:98) ~[PlugManX.jar:?]
at org.bukkit.command.PluginCommand.execute(PluginCommand.java:45) ~[purpur-api-1.18.2-R0.1-SNAPSHOT.jar:?]
at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:172) ~[purpur-api-1.18.2-R0.1-SNAPSHOT.jar:?]
at org.bukkit.craftbukkit.v1_18_R2.CraftServer.dispatchCommand(CraftServer.java:906) ~[purpur-1.18.2.jar:git-Purpur-1632]
at net.minecraft.server.network.ServerGamePacketListenerImpl.handleCommand(ServerGamePacketListenerImpl.java:2390) ~[?:?]
at net.minecraft.server.network.ServerGamePacketListenerImpl.handleChat(ServerGamePacketListenerImpl.java:2201) ~[?:?]
at net.minecraft.server.network.ServerGamePacketListenerImpl.handleChat(ServerGamePacketListenerImpl.java:2182) ~[?:?]
at net.minecraft.network.protocol.game.ServerboundChatPacket.handle(ServerboundChatPacket.java:46) ~[?:?]
at net.minecraft.network.protocol.game.ServerboundChatPacket.a(ServerboundChatPacket.java:6) ~[?:?]
at net.minecraft.network.protocol.PacketUtils.lambda$ensureRunningOnSameThread$1(PacketUtils.java:51) ~[?:?]
at net.minecraft.server.TickTask.run(TickTask.java:18) ~[purpur-1.18.2.jar:git-Purpur-1632]
at net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:153) ~[?:?]
at net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:24) ~[?:?]
at net.minecraft.server.MinecraftServer.doRunTask(MinecraftServer.java:1427) ~[purpur-1.18.2.jar:git-Purpur-1632]
at net.minecraft.server.MinecraftServer.d(MinecraftServer.java:188) ~[purpur-1.18.2.jar:git-Purpur-1632]
at net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:126) ~[?:?]
at net.minecraft.server.MinecraftServer.pollTaskInternal(MinecraftServer.java:1404) ~[purpur-1.18.2.jar:git-Purpur-1632]
at net.minecraft.server.MinecraftServer.pollTask(MinecraftServer.java:1397) ~[purpur-1.18.2.jar:git-Purpur-1632]
at net.minecraft.util.thread.BlockableEventLoop.managedBlock(BlockableEventLoop.java:136) ~[?:?]
at net.minecraft.server.MinecraftServer.waitUntilNextTick(MinecraftServer.java:1375) ~[purpur-1.18.2.jar:git-Purpur-1632]
at net.minecraft.server.MinecraftServer.runServer(MinecraftServer.java:1257) ~[purpur-1.18.2.jar:git-Purpur-1632]
at net.minecraft.server.MinecraftServer.lambda$spin$1(MinecraftServer.java:321) ~[purpur-1.18.2.jar:git-Purpur-1632]
at java.lang.Thread.run(Thread.java:833) ~[?:?]
WARN20:03:08
Exception in thread "Thread-33" java.lang.NoClassDefFoundError: at/pcgamingfreaks/MinepacksStandalone/libs/at/pcgamingfreaks/Updater/UpdateProviders/UpdateProvider$UpdateFile
at Minepacks-2.4.19.jar//at.pcgamingfreaks.MinepacksStandalone.libs.at.pcgamingfreaks.Updater.UpdateProviders.GitHubUpdateProvider.query(GitHubUpdateProvider.java:104)
at Minepacks-2.4.19.jar//at.pcgamingfreaks.MinepacksStandalone.libs.at.pcgamingfreaks.Updater.Updater.query(Updater.java:336)
at Minepacks-2.4.19.jar//at.pcgamingfreaks.MinepacksStandalone.libs.at.pcgamingfreaks.Updater.Updater.doUpdate(Updater.java:360)
at Minepacks-2.4.19.jar//at.pcgamingfreaks.MinepacksStandalone.libs.at.pcgamingfreaks.Updater.Updater.lambda$update$0(Updater.java:319)
at java.base/java.lang.Thread.run(Thread.java:833)

Plugman is known to cause issues loading the plugin. Please restart the server or use the /backpack reload command instead.

While restarting the server I get the following error:

[Minepacks]: Disabling Minepacks v2.4.19-Standalone
ERROR22:44:14
Error occurred while disabling Minepacks v2.4.19-Standalone (Is it up to date?)
Console22:44:14
java.lang.NullPointerException: Cannot invoke "at.pcgamingfreaks.MinepacksStandalone.Bukkit.Command.CommandManager.close()" because "this.commandManager" is null
at at.pcgamingfreaks.MinepacksStandalone.Bukkit.Minepacks.unload(Minepacks.java:254) ~[Minepacks-2.4.19.jar:?]
at at.pcgamingfreaks.MinepacksStandalone.Bukkit.Minepacks.onDisable(Minepacks.java:184) ~[Minepacks-2.4.19.jar:?]
at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:266) ~[purpur-api-1.18.2-R0.1-SNAPSHOT.jar:?]
at org.bukkit.plugin.java.JavaPluginLoader.disablePlugin(JavaPluginLoader.java:401) ~[purpur-api-1.18.2-R0.1-SNAPSHOT.jar:?]
at org.bukkit.plugin.SimplePluginManager.disablePlugin(SimplePluginManager.java:578) ~[purpur-api-1.18.2-R0.1-SNAPSHOT.jar:?]
at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:376) ~[purpur-api-1.18.2-R0.1-SNAPSHOT.jar:?]
at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:541) ~[purpur-api-1.18.2-R0.1-SNAPSHOT.jar:?]
at org.bukkit.craftbukkit.v1_18_R2.CraftServer.enablePlugin(CraftServer.java:560) ~[purpur-1.18.2.jar:git-Purpur-1632]
at org.bukkit.craftbukkit.v1_18_R2.CraftServer.enablePlugins(CraftServer.java:474) ~[purpur-1.18.2.jar:git-Purpur-1632]
at net.minecraft.server.MinecraftServer.loadWorld0(MinecraftServer.java:670) ~[purpur-1.18.2.jar:git-Purpur-1632]
at net.minecraft.server.MinecraftServer.loadLevel(MinecraftServer.java:437) ~[purpur-1.18.2.jar:git-Purpur-1632]
at net.minecraft.server.dedicated.DedicatedServer.initServer(DedicatedServer.java:352) ~[purpur-1.18.2.jar:git-Purpur-1632]
at net.minecraft.server.MinecraftServer.runServer(MinecraftServer.java:1180) ~[purpur-1.18.2.jar:git-Purpur-1632]
at net.minecraft.server.MinecraftServer.lambda$spin$1(MinecraftServer.java:321) ~[purpur-1.18.2.jar:git-Purpur-1632]
at java.lang.Thread.run(Thread.java:833) ~[?:?]

Problem solved itself can be closed