A Microsoft file hosting and synchronization service.
Hi Oktawia Magdziarz,
Welcome to Microsoft Community.
I realize that you’ve encountered a problem with OneDrive service keeps displaying an error with the connection and I understand how you feel.
Are you experiencing a connection error in the OneDrive app? If so, have you tried logging in to OneDrive via the web version?
You can try to log in to the OneDrive web version at **** **www.onedrive.com**,Please log out and log back in to your OneDrive account.
Check the version information in the OneDrive settings to ensure OneDrive is up to date. If the issue persists, try resetting OneDrive. For instructions on resetting OneDrive.Reset OneDrive - Microsoft Support
In addition, I need to collect more information from you.
1.Are you using the latest version of OneDrive?
2.If you're unsure, you can update OneDrive first. Please also try to check if there are any updates available for your Windows.
Feel free to post back if you need further assistance.
Best regards
Gina-MSFT | Microsoft Community Support Specialist