I am trying to revive an old store setup based on prestashop 1.6.
I checked all settings avd verified everything is fine.
The store frontpage is up and running.
Howevere admin page gives me the below error:
Fatal error: Call to undefined function mysql_connect() in /home/.../classes/db/MySQL.php on line 37
I cannot connect to admin screens due to this error. It seems admin page is trying to use depreceated mysql_connect while front end is using mysqli.
Only admin page is giving the error. mySQL, php works fine. I even changed store name and other text from database directly and they appear on frontpage correctly. So database connection works fine.
I couldn't figure out why it does not only on admin page.
Please help.