New Users cant login

My new users cant login to my app, old ones can however. Is there a specific certification I need? My applications was finished in November of 2016, my certifications are up to date with them expiring at the end of July and August. Not sure what to do. Any help is appreciated.

Replies

It doesn't look like this post is related to Localization, so you may not get any responses in this forum. Actually, it's unclear what exactly you're asking about so you may want to give some more details to get redirected to a more appropriate forum.