NullReferenceException at OnNpcTargetFixed

When I checked the logs this is what shows I've removed the plugin and all data and config files and reinstalled but still shows.

[Error] Failed to call hook 'OnNpcTarget' on plugin 'RaidableBases v1.5.5' (NullReferenceException: Object reference not set to an instance of an object)
  at Oxide.Plugins.RaidableBases.OnNpcTarget (BaseEntity entity, NPCPlayerApex npc) [0x0000b] in <062c8463310c4853af82c8e87067672b>:0
  at Oxide.Plugins.RaidableBases.DirectCallHook (System.String name, System.Object& ret, System.Object[] args) [0x00377] in <062c8463310c4853af82c8e87067672b>:0
  at Oxide.Plugins.CSharpPlugin.InvokeMethod (Oxide.Core.Plugins.HookMethod method, System.Object[] args) [0x00079] in <80b90e8213db44b29ec2d4111764172c>:0
  at Oxide.Core.Plugins.CSPlugin.OnCallHook (System.String name, System.Object[] args) [0x000d8] in <ec05e0208c9149bba43236ca58fea105>:0
  at Oxide.Core.Plugins.Plugin.CallHook (System.String hook, System.Object[] args) [0x00060] in <ec05e0208c9149bba43236ca58fea105>:0
I think I might have fixed it.. This was my 1st time ever installing a custom map and I read somewhere I had to install the Oxide.Ext.RustEdit.dll.. After may hours I decided to remove this file and restart... so far so good I'll let you know if this comes back...
ok let me know. it should never be null

Its back again 

Failed to call hook 'OnNpcTarget' on plugin 'RaidableBases v1.5.5' (NullReferenceException: Object reference not set to an instance of an object)
at Oxide.Plugins.RaidableBases.OnNpcTarget (BaseEntity entity, NPCPlayerApex npc) [0x0000b] in <57c5993d8d5b4e81af729448e707afd1>:0
at Oxide.Plugins.RaidableBases.DirectCallHook (System.String name, System.Object& ret, System.Object[] args) [0x00377] in <57c5993d8d5b4e81af729448e707afd1>:0
at Oxide.Plugins.CSharpPlugin.InvokeMethod (Oxide.Core.Plugins.HookMethod method, System.Object[] args) [0x00079] in <80b90e8213db44b29ec2d4111764172c>:0
at Oxide.Core.Plugins.CSPlugin.OnCallHook (System.String name, System.Object[] args) [0x000d8] in <ec05e0208c9149bba43236ca58fea105>:0
at Oxide.Core.Plugins.Plugin.CallHook (System.String hook, System.Object[] args) [0x00060] in <ec05e0208c9149bba43236ca58fea105>:0

Hello, I have a console error for the plugin I do not know where it could come from, could someone help me to solve this problem please

This error has appeared since the last update.

it does about 50 lines in the console

(18:14:26) | Failed to call hook 'OnNpcTarget' on plugin 'RaidableBases v1.5.5' (NullReferenceException: Object reference not set to an instance of an object)
  at Oxide.Plugins.RaidableBases.OnNpcTarget (BaseEntity entity, NPCPlayerApex npc) [0x0000b] in <34083fb1e19642cebe1e1cd1c537432f>:0 
  at Oxide.Plugins.RaidableBases.DirectCallHook (System.String name, System.Object& ret, System.Object[] args) [0x00377] in <34083fb1e19642cebe1e1cd1c537432f>:0 
  at Oxide.Plugins.CSharpPlugin.InvokeMethod (Oxide.Core.Plugins.HookMethod method, System.Object[] args) [0x00079] in <80b90e8213db44b29ec2d4111764172c>:0 
  at Oxide.Core.Plugins.CSPlugin.OnCallHook (System.String name, System.Object[] args) [0x000d8] in <ec05e0208c9149bba43236ca58fea105>:0 
  at Oxide.Core.Plugins.Plugin.CallHook (System.String hook, System.Object[] args) [0x00060] in <ec05e0208c9149bba43236ca58fea105>:0
not sure how this is ever null, but fixed in next update
Locked automatically