Google classroom not working problem

Google Classroom troubleshooting
Are you having problems with the Google Classroom app and are you looking for suitable solutions to correct the errors? Then find out in this post what you can do if you are having trouble with Google Classroom on iOS or Android devices. The Google Classroom app comes from the developer Google LLC and is generally responsible for troubleshooting. But not all problems that occur with Google Classroom not working are due to developer errors.

If you are having trouble using Google Classroom with Go Guardian, read on to find the corresponding causes and solutions.

Common problems:
Classroom shows "Imported by" but does not appear in Active Classrooms
Classroom was imported, but some students are not syncing
Classroom imported, but no students syncing
The Submit button in Google Classroom takes students to a Go Guardian block page.
Reconnecting your Google account to solve various problems