NullReferenceException: Object reference not set to an instance of an object.

[woahs]

Getting the following Error Exception in SMAPI logs:

This mod failed in the GameLoop.UpdateTicking event. Technical details: 
NullReferenceException: Object reference not set to an instance of an object.
   at PauseInMultiplayer.PauseInMultiplayer.GameLoop_UpdateTicking(Object sender, UpdateTickingEventArgs e) in /Users/misha/PauseInMultiplayer/PauseInMultiplayer/PauseInMultiplayer.cs:line 538
   at StardewModdingAPI.Framework.Events.ManagedEvent`1.Raise(TEventArgs args) in SMAPI\Framework\Events\ManagedEvent.cs:line 101

Same exception repeated 484 times. Did not observe any strange behavior in game yet.