I am working with a client to resolve an issue with their website. It seems their host forced a PHP 7.1 upgrade and now their website is down. The error reads "Your PHP installation appears to be missing the MySQL extension which is required by WordPress.".
Cannot access the admin dashboard and have already tried manually updating the WordPress version via FTP. I have SSH access to the server but I'm not sure what commands to run and it seems like apt-get doesn't work.
Does anyone have any information on resolving this issue?