Please fix it!!
[15:13:33 ERROR]: Could not pass event PlayerCommandPreprocessEvent to BetterHub v3.2
java.lang.NullPointerException: Cannot invoke "java.util.List.iterator()" because "me.adarsh.betterhub.Main.commands" is null
at me.adarsh.betterhub.listeners.PlayerChatListener.onPlayerCommand(PlayerChatListener.java:119) ~[betterhub-4.2.jar:?]
at com.destroystokyo.paper.event.executor.asm.generated.GeneratedEventExecutor36.execute(Unknown Source) ~[?:?]
at org.bukkit.plugin.EventExecutor$2.execute(EventExecutor.java:77) ~[purpur-api-1.19.3-R0.1-SNAPSHOT.jar:?]
at co.aikar.timings.TimedEventExecutor.execute(TimedEventExecutor.java:80) ~[purpur-api-1.19.3-R0.1-SNAPSHOT.jar:git-Purpur-1876]
at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:70) ~[purpur-api-1.19.3-R0.1-SNAPSHOT.jar:?]
at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:680) ~[purpur-api-1.19.3-R0.1-SNAPSHOT.jar:?]
at net.minecraft.server.network.ServerGamePacketListenerImpl.performChatCommand(ServerGamePacketListenerImpl.java:2353) ~[?:?]
at net.minecraft.server.network.ServerGamePacketListenerImpl.lambda$handleChatCommand$21(ServerGamePacketListenerImpl.java:2339) ~[?:?]
at net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:59) ~[?:?]
at java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?]
at net.minecraft.server.TickTask.run(TickTask.java:18) ~[purpur-1.19.3.jar:git-Purpur-1876]
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:1368) ~[purpur-1.19.3.jar:git-Purpur-1876]
at net.minecraft.server.MinecraftServer.d(MinecraftServer.java:197) ~[purpur-1.19.3.jar:git-Purpur-1876]
at net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:126) ~[?:?]
at net.minecraft.server.MinecraftServer.pollTaskInternal(MinecraftServer.java:1345) ~[purpur-1.19.3.jar:git-Purpur-1876]
at net.minecraft.server.MinecraftServer.pollTask(MinecraftServer.java:1338) ~[purpur-1.19.3.jar:git-Purpur-1876]
at net.minecraft.util.thread.BlockableEventLoop.managedBlock(BlockableEventLoop.java:136) ~[?:?]
at net.minecraft.server.MinecraftServer.waitUntilNextTick(MinecraftServer.java:1316) ~[purpur-1.19.3.jar:git-Purpur-1876]
at net.minecraft.server.MinecraftServer.runServer(MinecraftServer.java:1204) ~[purpur-1.19.3.jar:git-Purpur-1876]
at net.minecraft.server.MinecraftServer.lambda$spin$0(MinecraftServer.java:321) ~[purpur-1.19.3.jar:git-Purpur-1876]
at java.lang.Thread.run(Thread.java:833) ~[?:?]

The fact that this is an open-source plugin, really fascinates me, though people will actually pay for such plugins.

This Plugin is Very good as per the developer is still Learning The Java And Bukkit/Spigot Api , And Let's Support him to make More Plugins!