1- Sorry for posting in the wrong place.
2- PHP Version 7.4 -- MariaDB 10.6 -- phpVMS I'm not really sure, but I think it was 5.6
3- Existing install
4- The problem happened for the following reason:
I could not connect to the host files via FTP on another host that I have with the same company
When the representative enabled my FTP account, I mistakenly thought that I had connected to the FTP account of another account that is not the VA, and I deleted the following files:
1 assets
2 airports
3 admin
4 .well-known - I don't know if this file belongs to the VA but it was one of the deleted ones
When I realized that I had deleted these files by mistake of the VA, I told a representative of my host to do a restore, but he couldn't get the page to work
5- No, I did not make any changes in app.config.php, only what was explained in answer 4