After restoring a backup The main site is not working

This page isn’t working

*****.com is currently unable to handle this request.

HTTP ERROR 500

The strange thing is that the subdomain you signed with is working

I ran the site by giving permission to the public_html folder 755, but the strange thing is that all the files returned without database
is there a solution ؟

I can’t find the database in phpmyadmin

can you please extract that backup file and see if db file is there in the backup zip?

Yes, the file already exists

can you please open a ticket and let me check