Please confirm that you are running one of the following versions of Veeam Backup for Microsoft 365 before upgrading to 5.0:
You can check this under Help and Support > About in the Veeam Backup for Microsoft 365 console. To upgrade from earlier versions, please contact our Customer Support. After upgrading, your build number will change to 126.96.36.1993.
This form is only for KB Feedback/Suggestions, if you need help with the software open a support case