A Microsoft file hosting and synchronization service.
Hi Gabriella,
Thank you for posting your question in the Microsoft Community. Sorry for the inconvenience. Possible reason why your OneDrive account got frozen is because you have exceeded your storage allowance and/or haven't signed in for a long time.
If your OneDrive still Freeze please check your OneDrive online to check if your OneDrive still not frozen.
Open any browsers
go to https://onedrive.live.com
log in using your Microsoft account
check if your account still not frozen
if still doesn't work follow step below
try this steps to help you Unfreeze your OneDrive account.
Using OneDrive Application
Unlink and Relink your OneDrive on Windows
Right-click the OneDrive cloud icon in the system tray (bottom-right corner) near the date and time.
Click Settings
Account TAB > Click Unlink this PC
confirmed Unlinked of account.
Open OneDrive
Press Start Menu > type "OneDrive"
press Enter
Sign in using Microsoft Account
Choose again OneDrive Default folder
Next > then your Account will be linked again to OneDrive.
if still doesn't resolve follow step below
Reset OneDrive application on Windows
Go to Start > Settings > Apps > Installed Apps
search for OneDrive > click 3 dots > Click Modify or Advance option
Under Reset
click Repair, Reset
restart your Device
if still doesn't resolve follow step below
Try to reinstall your OneDrive application
then restart your device check again the status of your OneDrive.
I hope this information helps. Let me know if you have any other questions.
Warm Regards,
Jansher | Microsoft Community Support