Error on unloading plugin

[Survival Arena] Ending SurvivalArena.
Failed to call hook 'Unload' on plugin 'SurvivalArena v1.0.2' (NullReferenceException: Object reference not set to an instance of an object)
  at Oxide.Plugins.SurvivalArena.EndEvent (System.Boolean unloaded) [0x001dc] in <8234e690c379459faef118f9771b99d0>:0 
  at Oxide.Plugins.SurvivalArena.Unload () [0x00007] in <8234e690c379459faef118f9771b99d0>:0 
  at Oxide.Plugins.SurvivalArena.DirectCallHook (System.String name, System.Object& ret, System.Object[] args) [0x00155] in <8234e690c379459faef118f9771b99d0>:0 
  at Oxide.Plugins.CSharpPlugin.InvokeMethod (Oxide.Core.Plugins.HookMethod method, System.Object[] args) [0x00079] in <09575a60985045248bcb43b20faeeb99>:0 
  at Oxide.Core.Plugins.CSPlugin.OnCallHook (System.String name, System.Object[] args) [0x000d8] in <bae5f1223fce49c493b01571c99dce02>:0 
  at Oxide.Core.Plugins.Plugin.CallHook (System.String hook, System.Object[] args) [0x00060] in <bae5f1223fce49c493b01571c99dce02>:0 

I have tried it with different maps and I always get the same error when stopping the server. It's not important but I want to report it so you are aware of the log. At first I thought it was because of using vanish but without using it it also happens. I hope this is helpful. The plugin is great, congratulations!

Hey yeah ive seen it on occasion but it is only at the shutdown of a server.

Ok thx, it's not a problem. You can close the ticket

Changed Status from Pending to Closed