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Sync problem, username Undefined

  • I have a problem with the synchronisation. When I want to do it at work (at home no problem), I write name and password --> launch synchronisation and --> an error occurred. After I go to opera://settings, in synchronisation I see for username: undefined.
    Can you help me please?

    Same like:

  • I had this same problem. This is how I fixed it.

    1. Log out of all devices (don't worry, your things won't disappear as long as you don't uninstall it).
    2. Close Opera.
    3. Sign in
    4. Click on "Redefine your data" (it won't erase your local settings)
    5. Change your password here and log out.
    6. Open Opera at home
    7. Go to Settings and Login
    8. Click on "Choose what to sync" or something like that
    9. Choose whatever you want to sync, but don't encrypt your data for now.
    10. Login Opera at work.

    If everything works fine, you may encrypt your data but you will have to login again.
    This worked for me.