Just started playing up today.... after a server reload

Failed to call hook 'OnNpcTarget' on plugin 'DangerousTreasures v2.0.9' (NullReferenceException: Object reference not set to an instance of an object)
  at Oxide.Plugins.DangerousTreasures.OnNpcTarget (BaseEntity npc, BaseEntity target) [0x0007d] in <3bf456a11c434ae6b7e5783750b040f7>:0 
  at Oxide.Plugins.DangerousTreasures.DirectCallHook (System.String name, System.Object& ret, System.Object[] args) [0x001cb] in <3bf456a11c434ae6b7e5783750b040f7>:0 
  at Oxide.Plugins.CSharpPlugin.InvokeMethod (Oxide.Core.Plugins.HookMethod method, System.Object[] args) [0x00079] in <8a646463979e4a1d9c0e2f1298e9483f>:0 
  at Oxide.Core.Plugins.CSPlugin.OnCallHook (System.String name, System.Object[] args) [0x000d8] in <1fe782f4b27a43ae85d29ebb2d56c007>:0 
  at Oxide.Core.Plugins.Plugin.CallHook (System.String hook, System.Object[] args) [0x00060] in <1fe782f4b27a43ae85d29ebb2d56c007>:0  

Failed to call hook 'OnNpcTarget' on plugin 'DangerousTreasures v2.1.2' (NullReferenceException: Object reference not set to an instance of an object)
  at Oxide.Plugins.DangerousTreasures.OnNpcTarget (BaseEntity npc, BaseEntity target) [0x0007d] in <15877d679d2f4c83b4cc197ddb5cd33f>:0 
  at Oxide.Plugins.DangerousTreasures.DirectCallHook (System.String name, System.Object& ret, System.Object[] args) [0x0022d] in <15877d679d2f4c83b4cc197ddb5cd33f>:0 
  at Oxide.Plugins.CSharpPlugin.InvokeMethod (Oxide.Core.Plugins.HookMethod method, System.Object[] args) [0x00079] in <8a646463979e4a1d9c0e2f1298e9483f>:0 
  at Oxide.Core.Plugins.CSPlugin.OnCallHook (System.String name, System.Object[] args) [0x000d8] in <1fe782f4b27a43ae85d29ebb2d56c007>:0 
  at Oxide.Core.Plugins.Plugin.CallHook (System.String hook, System.Object[] args) [0x00060] in <1fe782f4b27a43ae85d29ebb2d56c007>:0  
​

razorfishsl

yep you are right......
dont know what happened there......

Merged post

clearly something else has changed.....

Failed to call hook 'OnNpcTarget' on plugin 'DangerousTreasures v2.1.2' (NullReferenceException: Object reference not set to an instance of an object)
  at Oxide.Plugins.DangerousTreasures.OnNpcTarget (BaseEntity npc, BaseEntity target) [0x0007d] in <15877d679d2f4c83b4cc197ddb5cd33f>:0 
  at Oxide.Plugins.DangerousTreasures.DirectCallHook (System.String name, System.Object& ret, System.Object[] args) [0x0022d] in <15877d679d2f4c83b4cc197ddb5cd33f>:0 
  at Oxide.Plugins.CSharpPlugin.InvokeMethod (Oxide.Core.Plugins.HookMethod method, System.Object[] args) [0x00079] in <8a646463979e4a1d9c0e2f1298e9483f>:0 
  at Oxide.Core.Plugins.CSPlugin.OnCallHook (System.String name, System.Object[] args) [0x000d8] in <1fe782f4b27a43ae85d29ebb2d56c007>:0 
  at Oxide.Core.Plugins.Plugin.CallHook (System.String hook, System.Object[] args) [0x00060] in <1fe782f4b27a43ae85d29ebb2d56c007>:0  
​

Already updated to 2.1.3

Have the same error with the actual version...
any ideas?

Failed to call hook 'OnNpcTarget' on plugin 'DangerousTreasures v2.1.8' (NullReferenceException: Object reference not set to an instance of an object)
  at Oxide.Plugins.DangerousTreasures.OnNpcTarget (BasePlayer player, BasePlayer target) [0x0005e] in <10bfb2f498d3454ebfec2b2baf2a6db2>:0

  at Oxide.Plugins.DangerousTreasures.DirectCallHook (System.String name, System.Object& ret, System.Object[] args) [0x00228] in <10bfb2f498d3454ebfec2b2baf2a6db2>:0

  at Oxide.Plugins.CSharpPlugin.InvokeMethod (Oxide.Core.Plugins.HookMethod method, System.Object[] args) [0x00079] in <3606d2af539c45e4b5c61658e6a8b307>:0

  at Oxide.Core.Plugins.CSPlugin.OnCallHook (System.String name, System.Object[] args) [0x000d8] in :0

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

DrDBug

Have the same error with the actual version...
any ideas?

Failed to call hook 'OnNpcTarget' on plugin 'DangerousTreasures v2.1.8' (NullReferenceException: Object reference not set to an instance of an object)
  at Oxide.Plugins.DangerousTreasures.OnNpcTarget (BasePlayer player, BasePlayer target) [0x0005e] in <10bfb2f498d3454ebfec2b2baf2a6db2>:0

  at Oxide.Plugins.DangerousTreasures.DirectCallHook (System.String name, System.Object& ret, System.Object[] args) [0x00228] in <10bfb2f498d3454ebfec2b2baf2a6db2>:0

  at Oxide.Plugins.CSharpPlugin.InvokeMethod (Oxide.Core.Plugins.HookMethod method, System.Object[] args) [0x00079] in <3606d2af539c45e4b5c61658e6a8b307>:0

  at Oxide.Core.Plugins.CSPlugin.OnCallHook (System.String name, System.Object[] args) [0x000d8] in :0

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

I am using the latest version (i dont use bots with it) and have had no problems , in fact i have never had any serious problems with any version of the plugin since its release ,

As you wrote, i do use bots an got this error message. Anyway, the bots are there and the event is runing fine 'but' i got this error...