Could not sync user data

Someone to assist me! Getting the error message Could not sync user data. Please report an issue if this persists!

This prevents users to into the CommCare App on using their tablets or Phones.

I need your urgent support all 300 are stacked!

Thank you

@theogene has this been resolved? For this sort of issue, I'd reach out to CommCare support from within the website so they can look at the specifics of your project.