I think I found the problem.
My event system needs to be empty after each tick, so it does not trigger error on deleted objects on the map.
Since there is no way to guess what objects would need to be unregistered in the event system following the previous tick. (creeps dead etc...)
That would be up to the devs to implement. An easier method would be to link your phone to your email address that your account is setup to. Any emails from notify will then appear on your phone.