Warning: require_once(MDB2.php): failed to open stream: No such file or directory in /home/nsergo3/base/lib.php on line 4

Fatal error: require_once(): Failed opening required 'MDB2.php' (include_path='.:/opt/cpanel/ea-php71/root/usr/share/pear') in /home/nsergo3/base/lib.php on line 4