error is 

```

Failed to call hook 'OnItemAddedToContainer' on plugin 'Skins v2.2.2' (NullReferenceException: Object reference not set to an instance of an object)

  at Oxide.Plugins.Skins+ContainerController.DrawUI (System.Int32 page) [0x0003f] in <9a33455e74ee40edb5a17f2eb4e9c5f7>:0 

  at Oxide.Plugins.Skins+ContainerController.UpdateContent (System.Int32 page) [0x00205] in <9a33455e74ee40edb5a17f2eb4e9c5f7>:0 

  at Oxide.Plugins.Skins.OnItemAddedToContainer (ItemContainer itemContainer, Item item) [0x000a2] in <9a33455e74ee40edb5a17f2eb4e9c5f7>:0 

  at Oxide.Plugins.Skins.DirectCallHook (System.String name, System.Object& ret, System.Object[] args) [0x002f3] in <9a33455e74ee40edb5a17f2eb4e9c5f7>: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 <9882f28dc2204b4dba514a9ad18f5042>:0 

  at Oxide.Core.Plugins.Plugin.CallHook (System.String hook, System.Object[] args) [0x00060] in <9882f28dc2204b4dba514a9ad18f5042>:0

```