Warning: require_once(session.php): failed to open stream: No such file or directory in /home/epipxwwm/php/library/users_head.php on line 2

Fatal error: require_once(): Failed opening required 'session.php' (include_path='.:/opt/alt/php56/usr/share/pear:/opt/alt/php56/usr/share/php') in /home/epipxwwm/php/library/users_head.php on line 2