Need password to access mr1100 netgear app after admin attempts unsucessful

I purchased a Netgear Nighthawk MR1100 about a year ago, but never bothered to change default username or password and now it has accumulated 14 messages (over time) which I have just left there. but co-incidentally or by design??, the display no longer shows my data usage, It looks like, to do anything you have to log in through the app and remove those messages, which hopefully would fix the data issue. But to change the password on that part I first have to login with the old password, which to my knowledge I never set-up.

Help would be apreciated.