Warning: require_once(vendor/autoload.php): failed to open stream: No such file or directory in /home/allnewisuzudmax/public_html/phpmailler5.2.7/test/bootstrap.php on line 2

Fatal error: require_once(): Failed opening required 'vendor/autoload.php' (include_path='.:/usr/lib/php:/usr/local/lib/php') in /home/allnewisuzudmax/public_html/phpmailler5.2.7/test/bootstrap.php on line 2