Warning: require_once(Mail.php): failed to open stream: No such file or directory in /home/swissonline/public_html/test/testmail.php on line 2

Fatal error: require_once(): Failed opening required 'Mail.php' (include_path='.:/opt/cpanel/ea-php54/root/usr/share/pear') in /home/swissonline/public_html/test/testmail.php on line 2