Deleted the FREEBPX admin folder by mistake

Hi - I’ve done a really stupid thing as detailed in the title.

I’ve copied the admin folder back across from a fresh download, but I’m getting the error message


Unknown SQL engine: []

Trace Back

/var/www/admin/common/db_connect.php:57 die_freepbx()
[0]: Unknown SQL engine: []

/var/www/admin/bootstrap.php:66 require_once()
[0]: /var/www/admin/common/db_connect.php

/var/www/admin/config.php:58 require()
[0]: /var/www/admin/bootstrap.php

I guess there are some mysql setting that I need to edit somewhere - can someone tell me which files I need to change to get this back up please?