Failed to call hook

Failed to call hook 'OnPlayerDisconnected' on plugin 'AdminMap v2.2.1' (ArgumentNullException: Value cannot be null.
Parameter name: collection)
at System.Collections.Generic.List`1[T].InsertRange (System.Int32 index, System.Collections.Generic.IEnumerable`1[T] collection) [0x00003] in <8ce0bd04a7a04b4b9395538239d3fdd8>:0
at System.Collections.Generic.List`1[T].AddRange (System.Collections.Generic.IEnumerable`1[T] collection) [0x00000] in <8ce0bd04a7a04b4b9395538239d3fdd8>:0
at (wrapper dynamic-method) MonoMod.Utils.DynamicMethodDefinition.BasePlayer.SendPingsToClient_Patch0(BasePlayer)
at Oxide.Plugins.AdminMap+ConnectionData.Reset () [0x00032] in <4ad240077a93427a9cd838979c609a84>:0
at Oxide.Plugins.AdminMap+ConnectionData.Dispose () [0x0000b] in <4ad240077a93427a9cd838979c609a84>:0
at Oxide.Plugins.AdminMap.OnPlayerDisconnected (BasePlayer player) [0x0000f] in <4ad240077a93427a9cd838979c609a84>:0
at Oxide.Plugins.AdminMap.DirectCallHook (System.String name, System.Object& ret, System.Object[] args) [0x00250] in <4ad240077a93427a9cd838979c609a84>:0
at Oxide.Plugins.CSharpPlugin.InvokeMethod (Oxide.Core.Plugins.HookMethod method, System.Object[] args) [0x00079] in <42f9bedc659b4f4786eb778d3cd58968>:0
at Oxide.Core.Plugins.CSPlugin.OnCallHook (System.String name, System.Object[] args) [0x000de] in <112d89ea5d3348c8b949af0ab1a866d2>:0
at Oxide.Core.Plugins.Plugin.CallHook (System.String hook, System.Object[] args) [0x00060] in <112d89ea5d3348c8b949af0ab1a866d2>:0