(02:33:07) | Failed to call hook 'ListCategoriesCommand' on plugin 'StackSizeController v3.4.3' (KeyNotFoundException: The given key was not present in the dictionary.)
  at System.Collections.Generic.Dictionary`2[TKey,TValue].get_Item (TKey key) [0x0001e] in <eae584ce26bc40229c1b1aa476bfa589>:0 
  at Oxide.Plugins.StackSizeController.ListCategoriesCommand (Oxide.Core.Libraries.Covalence.IPlayer player, System.String command, System.String[] args) [0x0003d] in <1a9133cf68834f029d990fcd6c842f26>:0 
  at Oxide.Plugins.StackSizeController.DirectCallHook (System.String name, System.Object& ret, System.Object[] args) [0x010c8] in <1a9133cf68834f029d990fcd6c842f26>:0 
  at Oxide.Plugins.CSharpPlugin.InvokeMethod (Oxide.Core.Plugins.HookMethod method, System.Object[] args) [0x00079] in <31122a27a2414cd799150f8677cf39d4>:0 
  at Oxide.Core.Plugins.CSPlugin.OnCallHook (System.String name, System.Object[] args) [0x000d8] in <0fbce81d88d64454b3e7abb24df7026b>:0 
  at Oxide.Core.Plugins.Plugin.CallHook (System.String hook, System.Object[] args) [0x00060] in <0fbce81d88d64454b3e7abb24df7026b>:0

I have this same issue.  Anyone else?  I can't get listcategories to work