Hi A.W.M,
We feel so sorry for what you are encountering.
Per my research, I want to share this article with you to try to restore database. But the database only can be restored of you have backup of the database. For your reference, you can check steps in
this article.
Moreover, you can try to find the files in Recycle bin if it stored in PC. Or if it stores in OneDrive, you can try to find in OneDrive recycle bin. For you reference, you can have a look at
this article and hope it could help.
However, our forum focus on dealing with issue of Office 365, and your case is about recovering Access Database. For better restoring the database of Access, we truly suggest you post in
MSDN forum and you will have effective suggestion there.
Thanks for your understanding.
Best Regards,
Ivy