Error message no such file or directory

This morning when I tried to edit I got the following error message:

Omeka Database Error

No such file or directory.
Confirm that the information in your db.ini file is correct.

Can anyone tell me what it means and how to fix it?

If you’re installation is set up for it, it would be helpful to see more detailed error messages. A few methods for accessing those here: Retreiving Error Messages - Omeka Classic User Manual