Error after updating stack modifier

Failed to call hook 'CanStackItem' on plugin 'StackModifier v2.6.1' (ArgumentOutOfRangeException: Index was out of range. Must be non-negative and less than the size of the collection.
Parameter name: index)
  at System.Collections.Generic.List`1[T].get_Item (System.Int32 index) [0x00009] in <f98723dd4586469db5213ec59da723ca>:0 
  at Oxide.Plugins.StackModifier.CanStackItem (Item item, Item targetItem) [0x002bb] in <219c7ce77fbb4cf0ab0e52ccef5a054c>:0 
  at Oxide.Plugins.StackModifier.DirectCallHook (System.String name, System.Object& ret, System.Object[] args) [0x00384] in <219c7ce77fbb4cf0ab0e52ccef5a054c>:0 
  at Oxide.Plugins.CSharpPlugin.InvokeMethod (Oxide.Core.Plugins.HookMethod method, System.Object[] args) [0x00079] in <795304323ac74a298b8ed190a1dfa739>: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 
Failed to call hook 'CanStackItem' on plugin 'StackModifier v2.6.1' (ArgumentOutOfRangeException: Index was out of range. Must be non-negative and less than the size of the collection.
Parameter name: index)
  at System.Collections.Generic.List`1[T].get_Item (System.Int32 index) [0x00009] in <f98723dd4586469db5213ec59da723ca>:0 

It just does that mess, not sure what triggers it.

You are 1 update behind good sir, please update. 

Changed Status from Pending to Not a Bug

Changed Fixed In to 2.6.2

The current version on the server is 2.6.2?

I just double-checked.  I'll re-install it, but the version it's using is 2.6.2.

I re-installed 2.6.2 and it seems to have done it.  I've no idea why, the one already there said 2.6.2, but maybe it got corrupted somehow.  Regardless, the re-installation of 2.6.2 seems to have done the trick.  Thank you