Warning: require_once(inc/payment/constant.php): failed to open stream: No such file or directory in /var/www/bphtb/main.php(1) : eval()'d code on line 12

Fatal error: require_once(): Failed opening required 'inc/payment/constant.php' (include_path='.') in /var/www/bphtb/main.php(1) : eval()'d code on line 12