I have clans plugin and clans uses their own system instad of the rust system this might be messing with this plugin.

Failed to call hook 'OnTeamCreated' on plugin 'TeamsLogger v1.5.1' (NullReferenceException: Object reference not set to an instance of an object)
  at Oxide.Plugins.TeamsLogger.PrintingMessages (BasePlayer player, System.String log) [0x0000b] in :0
  at Oxide.Plugins.TeamsLogger.KeyType (BasePlayer player, System.String key, System.Object[] args) [0x0000a] in :0
  at Oxide.Plugins.TeamsLogger.OnTeamCreated (BasePlayer player, RelationshipManager+PlayerTeam team) [0x00023] in :0
  at Oxide.Plugins.TeamsLogger.DirectCallHook (System.String name, System.Object& ret, System.Object[] args) [0x001d6] in :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 <50629aa0e75d4126b345d8d9d64da28d>:0
  at Oxide.Core.Plugins.Plugin.CallHook (System.String hook, System.Object[] args) [0x00060] in <50629aa0e75d4126b345d8d9d64da28d>:0
 ​

It more than likely is, I haven't integrated Clans support yet.