If this method fails to fix the Outlook profile, you can try the Outlook inbuilt repair tool i.e., ScanPST or Outlook inbox repair tool.
These figures will give you an impression of how far over the limit the account is.
If your country/region isn’t listed, select a neighboring country/region or dial the United States support phone number.
That includes companies that use Exchange Online as well as those that run Microsoft Exchange Server on-premises.