To avoid error messages, you can: - Uninstall the app - Open Win.migros.ch - Log out/log in (if this does not work, next step) - Clear cache/cookies - Close browser completely - Check stable internet connection and reopen game If you still have difficulties using the game? Then please send your request directly to migros-helpline@migros.ch so that the technical department can check your request in more detail. best regards Sofia