Failed to call hook 'ccmdKitsGridView'

Failed to call hook 'ccmdKitsGridView' on plugin 'Kits v4.0.12' (NullReferenceException: Object reference not set to an instance of an object) at Oxide.Plugins.Kits.ChargePlayer (BasePlayer player, System.Int32 amount) [0x00090] in <946eb5b42e854b75ad86fa8e3c49e477>:0 at Oxide.Plugins.Kits.CanClaimKit (BasePlayer player, Oxide.Plugins.Kits+KitData+Kit kit, System.Boolean ignoreAuthCost) [0x00246] in <946eb5b42e854b75ad86fa8e3c49e477>:0 at Oxide.Plugins.Kits.TryClaimKit (BasePlayer player, System.String name, System.Boolean usingUI) [0x000a0] in <946eb5b42e854b75ad86fa8e3c49e477>:0 at Oxide.Plugins.Kits.ccmdKitsGridView (ConsoleSystem+Arg arg) [0x000c2] in <946eb5b42e854b75ad86fa8e3c49e477>:0 at Oxide.Plugins.Kits.DirectCallHook (System.String name, System.Object& ret, System.Object[] args) [0x01992] in <946eb5b42e854b75ad86fa8e3c49e477>: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'm getting the above in the console and not sure of the cause :/

Am still getting:

Failed to call hook 'ccmdKitsGridView' on plugin 'Kits v4.0.14' (NullReferenceException: Object reference not set to an instance of an object)
  at Oxide.Plugins.Kits.ChargePlayer (BasePlayer player, System.Int32 amount) [0x00090] in <ac42962ad387437c8d5c96efc4ca2e34>:0 
  at Oxide.Plugins.Kits.CanClaimKit (BasePlayer player, Oxide.Plugins.Kits+KitData+Kit kit, System.Boolean ignoreAuthCost) [0x00246] in <ac42962ad387437c8d5c96efc4ca2e34>:0 
  at Oxide.Plugins.Kits.TryClaimKit (BasePlayer player, System.String name, System.Boolean usingUI) [0x000a0] in <ac42962ad387437c8d5c96efc4ca2e34>:0 
  at Oxide.Plugins.Kits.ccmdKitsGridView (ConsoleSystem+Arg arg) [0x000c2] in <ac42962ad387437c8d5c96efc4ca2e34>:0 
  at Oxide.Plugins.Kits.DirectCallHook (System.String name, System.Object& ret, System.Object[] args) [0x01bc6] in <ac42962ad387437c8d5c96efc4ca2e34>: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​

with latest version too. I added new kits all via the GUI so am at a loss as to what is causing the NRE