Failed to call hook 'OnPlayerConnected' on plugin 'Ember v1.1.0' 
(KeyNotFoundException: The given key was not present in the dictionary.)
  at System.Collections.Generic.Dictionary`2[TKey,TValue].get_Item (TKey
 key) [0x0001e] in :0
at Oxide.Plugins.Ember.ProcessUser (BasePlayer player) [0x00007] in :0
at Oxide.Plugins.Ember.OnPlayerConnected (BasePlayer player) [0x00000] in :0
at Oxide.Plugins.Ember.DirectCallHook (System.String name, System.Object& ret, System.Object[] args) [0x0054e] in :0
at Oxide.Plugins.CSharpPlugin.InvokeMethod (Oxide.Core.Plugins.HookMethod method, System.Object[] args) [0x00079] in <3606d2af539c45e4b5c61658e6a8b307>:0
at Oxide.Core.Plugins.CSPlugin.OnCallHook (System.String name, System.Object[] args) [0x000d8] in :0
at Oxide.Core.Plugins.Plugin.CallHook (System.String hook, System.Object[] args) [0x00060] in :0

this happens multiple times every hour since last rust/umod update - please help.