Custom certificate (plugin)

I fixed the problem, my moodle cron job wasn't running since the update. It was like

/usr/bin/php /var/www/moodle/admin/cli/cron.php > /dev/null
since the update, it threw
"PHP Deprecated errors"
"Error: database driver problem detected"
"PHP has not been properly configured with the MySQLi extension for it to communicate with MySQL."

Pinning the php version in the cronjob solved the issue.
/usr/bin/php7.3 /var/www/moodle/admin/cli/cron.php > /dev/null

Sorry!