Error. Help pls.

Failed to call hook 'OnPlayerDisconnected' on plugin 'Rustcord v1.3.2' (NullReferenceException: Object reference not set to an instance of an object) at Oxide.Ext.Discord.DiscordObjects.Channel.GetChannel (Oxide.Ext.Discord.DiscordClient client, System.String channelID, System.Action`1[T] callback) [0x00001] in <8623905c616349b49594ebac36d5c08b>:0 at Oxide.Plugins.Rustcord+<OnPlayerDisconnected>c__AnonStorey2.<>m__0 (Oxide.Plugins.Rustcord+Settings+Channel ch) [0x00011] in <01aa7972b03c4b5393a740bf1de7e4f5>:0 at System.Collections.Generic.List`1[T].ForEach (System.Action`1[T] action) [0x00024] in <1f0c1ef1ad524c38bbc5536809c46b48>:0 at Oxide.Plugins.Rustcord.OnPlayerDisconnected (BasePlayer player, System.String reason) [0x0006e] in <01aa7972b03c4b5393a740bf1de7e4f5>:0 at Oxide.Plugins.Rustcord.DirectCallHook (System.String name, System.Object& ret, System.Object[] args) [0x00226] in <01aa7972b03c4b5393a740bf1de7e4f5>:0 at Oxide.Plugins.CSharpPlugin.InvokeMethod (Oxide.Core.Plugins.HookMethod method, System.Object[] args) [0x00079] in <9affce1cd15c4ec183941adef8db1722>:0 at Oxide.Core.Plugins.CSPlugin.OnCallHook (System.String name, System.Object[] args) [0x000d8] in <4452f821def6406d834e4149849fe7ea>:0 at Oxide.Core.Plugins.Plugin.CallHook (System.String hook, System.Object[] args) [0x00060] in <4452f821def6406d834e4149849fe7ea>:0​

also im getting this error when someone rights in chat (i have setup Rustcord to send the chat messages in a Discord channel)

https://pastebin.com/rMZEwzXb

Reload plugin, happens with extension sometimes.

Failed to call hook 'OnPlayerInit' on plugin 'Rustcord v1.7.3' (NullReferenceException: Object reference not set to an instance of an object)
  at Oxide.Ext.Discord.DiscordObjects.Channel.GetChannel (Oxide.Ext.Discord.DiscordClient client, System.String channelID, System.Action`1[T] callback) [0x00001] in <a5b2f558069e40f7b83de551a4df08a5>:0 
  at Oxide.Plugins.Rustcord+<OnPlayerInit>c__AnonStorey1.<>m__0 (Oxide.Plugins.Rustcord+Settings+Channel ch) [0x00011] in <5398c25b85a94f548bcf4e32e9774402>:0 
  at System.Collections.Generic.List`1[T].ForEach (System.Action`1[T] action) [0x00024] in <7d97106330684add86d080ecf65bfe69>:0 
  at Oxide.Plugins.Rustcord.OnPlayerInit (BasePlayer player) [0x00058] in <5398c25b85a94f548bcf4e32e9774402>:0 
  at Oxide.Plugins.Rustcord.DirectCallHook (System.String name, System.Object& ret, System.Object[] args) [0x002c6] in <5398c25b85a94f548bcf4e32e9774402>:0 
  at Oxide.Plugins.CSharpPlugin.InvokeMethod (Oxide.Core.Plugins.HookMethod method, System.Object[] args) [0x00079] in <9affce1cd15c4ec183941adef8db1722>:0 
  at Oxide.Core.Plugins.CSPlugin.OnCallHook (System.String name, System.Object[] args) [0x000d8] in <4452f821def6406d834e4149849fe7ea>:0 
  at Oxide.Core.Plugins.Plugin.CallHook (System.String hook, System.Object[] args) [0x00060] in <4452f821def6406d834e4149849fe7ea>:0