1 Clear App Cache and Data
Open Settings on your phone, then go to Apps > Library Modules, from there choose Clear Cache for a light cleanup, or choose Clear Data for a more thorough reset
Do this at least 3 times in a row, this method is quite effective at fixing login issues, registration issues, or APK build server update failures
Clearing app data will automatically log you out, so have your username and password ready before you start
2 Update Build Server
After the first step is done, open the drawer menu on the app's main page and select Update Build Server, combining both steps usually speeds up the fix
3 Log In or Register Again
Once the build server is updated, try logging in or registering to your account again, by following the three steps above in order, the error you're experiencing should generally be resolved right away
If the issue persists after trying all the steps above, contact us through the feedback menu on the account page so we can help further