URGENT HELP REQUIRED Publish to web login glitch

I have just released one of my apps for BETA testing. My login screen has crashed for some reason. When users go to login it is asking them to verify email address again.
When trying to register i get an error such as:

I thought it may have been from new features that i was adding to it, but after testing an older version from which the images are taken the older version is also producing the same error.

It is working in the live testing but not when Publish to Web
It has been working fine for months

A post was merged into an existing topic: [Bug?] Authentication not working on android but working on iOS