This is what I get in the console
[Discord Extension] [Exception]: A web request exception occured (internal error) [RETRY=1/3].
Request URL: [POST] https://discord.com/api/v9/channels/999578827950927992/messages
System.Net.WebException: The operation has timed out.
  at System.Net.HttpWebRequest.GetRequestStream () [0x00016] in <9c36e86018ed40ba840b6061ef84dd1c>:0 
  at Oxide.Ext.Discord.Rest.Request.WriteRequestData (System.Net.WebRequest request) [0x0002d] in <04348bf9a35746d283d4a8b439245576>:0 
  at Oxide.Ext.Discord.Rest.Request.Fire () [0x00022] in <04348bf9a35746d283d4a8b439245576>:0  (WebException: The operation has timed out.)
  at System.Net.HttpWebRequest.GetRequestStream () [0x00016] in <9c36e86018ed40ba840b6061ef84dd1c>:0 
  at Oxide.Ext.Discord.Rest.Request.WriteRequestData (System.Net.WebRequest request) [0x0002d] in <04348bf9a35746d283d4a8b439245576>:0 
  at Oxide.Ext.Discord.Rest.Request.Fire () [0x00022] in <04348bf9a35746d283d4a8b439245576>:0
[Discord Extension] [Exception]: A web request exception occured (internal error) [RETRY=1/3].
Request URL: [POST] https://discord.com/api/v9/channels/999578633075167338/messages
System.Net.WebException: The operation has timed out.
  at System.Net.HttpWebRequest.GetRequestStream () [0x00016] in <9c36e86018ed40ba840b6061ef84dd1c>:0 
  at Oxide.Ext.Discord.Rest.Request.WriteRequestData (System.Net.WebRequest request) [0x0002d] in <04348bf9a35746d283d4a8b439245576>:0 
  at Oxide.Ext.Discord.Rest.Request.Fire () [0x00022] in <04348bf9a35746d283d4a8b439245576>:0  (WebException: The operation has timed out.)
  at System.Net.HttpWebRequest.GetRequestStream () [0x00016] in <9c36e86018ed40ba840b6061ef84dd1c>:0 
  at Oxide.Ext.Discord.Rest.Request.WriteRequestData (System.Net.WebRequest request) [0x0002d] in <04348bf9a35746d283d4a8b439245576>:0 
  at Oxide.Ext.Discord.Rest.Request.Fire () [0x00022] in <04348bf9a35746d283d4a8b439245576>:0
20.456.654.956:54045/76561############/Flechen joined [windows/76561############]
[Discord Extension] [Error]: Discord API has returned error Discord Code: 50013 Discord Error: Missing Permissions Request: [PATCH] https://discord.com/api/v9/guilds/998886696466780181/members/998885122268987413 (Response Code: Forbidden) Content-Type: application/json
Discord Errors:
Request Body:
{
"nick": "Flechen"
}

Getting the same message in my server console.