Ok so when I do /command in the bot's DMS It says this on my RCON Console

[Discord Core] Error in message create:
System.NullReferenceException: Object reference not set to an instance of an object
  at Oxide.Plugins.DiscordCore.Discord_MessageCreate (Oxide.Ext.Discord.DiscordObjects.Message message) [0x003d6] in <199bc98264824356b2f27e7bf649ebb0>:0 ​

I don't really know why i'd guess it's a bug from the plugin itself? idk