Warning: require(mdb): failed to open stream: No such file or directory in /home/betatech/public_html/trainingschedule.php on line 3

Fatal error: require(): Failed opening required 'mdb' (include_path='.:/opt/cpanel/ea-php71/root/usr/share/pear') in /home/betatech/public_html/trainingschedule.php on line 3