Console Error

I'm seeing this console error every once in awhile... not sure what's causing it.

Failed to call hook 'CMDMain' on plugin 'SkinController v2.0.8' (NullReferenceException: Object reference not set to an instance of an object)
at Oxide.Plugins.SkinController.SkinContainer (BasePlayer player, System.Collections.Generic.List`1[T] items, Oxide.Plugins.SkinController+PlayerSettings& playerSettings, System.Boolean findSkins, Oxide.Plugins.SkinController+SkinData skinInfo, System.Collections.Generic.List`1[T] inventoryItems, System.Boolean isInventory) [0x001c1] in <550dfa11d92049a8b7adaaa65c5e4e93>:0
at Oxide.Plugins.SkinController.CMDMain (ConsoleSystem+Arg arg) [0x008dc] in <550dfa11d92049a8b7adaaa65c5e4e93>:0
at Oxide.Plugins.SkinController.DirectCallHook (System.String name, System.Object& ret, System.Object[] args) [0x00ebe] in <550dfa11d92049a8b7adaaa65c5e4e93>:0
at Oxide.Plugins.CSharpPlugin.InvokeMethod (Oxide.Core.Plugins.HookMethod method, System.Object[] args) [0x00079] in <206a0f2c6ee141f38e2ad549cde44d70>:0
at Oxide.Core.Plugins.CSPlugin.OnCallHook (System.String name, System.Object[] args) [0x000de] in <beb2b64691c64e2b95b99491bd85442c>:0
at Oxide.Core.Plugins.Plugin.CallHook (System.String hook, System.Object[] args) [0x00060] in <beb2b64691c64e2b95b99491bd85442c>:0