Local Push Notifications - Unrecognized selector sent to instance

I’m hitting the following issue with Katzer’s Local Push Notification plugin I have installed:

*** Terminating app due to uncaught exception ‘NSInvalidArgumentException’, reason: ‘-[__NSCFNumber isEqualToString:]: unrecognized selector sent to instance 0x16d7aae0’

It’s crashing my app now a few seconds after load.

I’ve looked at this open issue but nothing seems to work.

Has any one managed to fix this or found another plugin to do local push?