hey all, ok
updated last night, after that the bot disconnected, so i removed it and made a new bot, 
obviously i have missed something or done something silly as i get:

Failed to call hook 'OnDiscordGatewayReady' on plugin 'DiscordChat v2.1.2' (MissingMethodException: bool Oxide.Ext.Discord.Entities.Applications.DiscordApplication.HasApplicationFlag(Oxide.Ext.Discord.Entities.Applications.ApplicationFlags))

at Oxide.Plugins.DiscordChat.DirectCallHook (System.String name, System.Object& ret, System.Object[] args) [0x002b9] in <eeb5775ef88e4bb0869896b1d8e895dc>:0

at Oxide.Plugins.CSharpPlugin.InvokeMethod (Oxide.Core.Plugins.HookMethod method, System.Object[] args) [0x00079] in <60c318df79ed41688ea59335e48d61ad>:0

at Oxide.Core.Plugins.CSPlugin.OnCallHook (System.String name, System.Object[] args) [0x000d8] in <12678b905a6d43c3a9cc366104306651>:0

at Oxide.Core.Plugins.Plugin.CallHook (System.String hook, System.Object[] args) [0x00060] in <12678b905a6d43c3a9cc366104306651>:0

It looks like you might have updated the Discord Extension without restarting your server? If that's not the case then you need to updated to the latest Discord Extension.

restarted the server this morning, updated the .dll last night. will try again later on .. just confused .. thanks for the reply

sorry forgot to reply to this, so i restarted the server the next morning and all worked ok, thanks for your help ..