Failed to call hook 'OnCollectiblePickup' on plugin 'PlayerChallenges v2.0.52'

I get a lot of Console Error

Failed to call hook 'OnCollectiblePickup' on plugin 'PlayerChallenges v2.0.52' (NullReferenceException: Object reference not set to an instance of an object)
  at Oxide.Plugins.PlayerChallenges.OnCollectiblePickup (CollectibleEntity collectible, BasePlayer player) [0x0005d] in <53ebb3abd0484cd0a8a800c29d8d8387>:0 
  at Oxide.Plugins.PlayerChallenges.DirectCallHook (System.String name, System.Object& ret, System.Object[] args) [0x00d1b] in <53ebb3abd0484cd0a8a800c29d8d8387>:0 
  at Oxide.Plugins.CSharpPlugin.InvokeMethod (Oxide.Core.Plugins.HookMethod method, System.Object[] args) [0x00079] in <206a0f2c6ee141f38e2ad549cde44d70>: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 

 

 

I am getting alot of the same errors too.

Ive also had this issue like crazy, has anyone figured a fix?

Yes, same spam in console here. @k1lly0u can you check please brother?