Failed to call hook 'GetPlayTime' on plugin 'PlaytimeTracker v0.2.1' (NullReferenceException: Object reference not set to an instance of an object)

  at Oxide.Plugins.PlaytimeTracker.GetPlayTime (System.String id) [0x00000] in :0

  at Oxide.Plugins.PlaytimeTracker.DirectCallHook (System.String name, System.Object& ret, System.Object[] args) [0x00309] in :0

  at Oxide.Plugins.CSharpPlugin.InvokeMethod (Oxide.Core.Plugins.HookMethod method, System.Object[] args) [0x00079] in <31122a27a2414cd799150f8677cf39d4>: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

Any updates on this? getting the same thing on mine? is this a core oxide update issue?