Warning: require_once(./lib/common.php): failed to open stream: No such file or directory in /home/slrb8org/public_html/index.php on line 18

Fatal error: require_once(): Failed opening required './lib/common.php' (include_path='.:/opt/cpanel/ea-php74/root/usr/share/pear') in /home/slrb8org/public_html/index.php on line 18