Failed to call hook 'OnCollectiblePickup' on plugin 'PlayerChallenges v2.0.48' (NullReferenceException: Object reference not set to an instance of an object)
  at Oxide.Plugins.PlayerChallenges.OnCollectiblePickup (CollectibleEntity collectible, BasePlayer player) [0x00072] in <71068b0d41ce4287adf0a915dcaab149>:0
                                                              3kb/s in, 18kb/s out
  at Oxide.Plugins.PlayerChallenges.DirectCallHook (System.String name, System.Object& ret, System.Object[] args) [0x00d13] in <71068b0d41ce4287adf0a915dcaab149>: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 <bae5f1223fce49c493b0157