Warning: require(/var/www/mysite/src/../vendor/autoload.php): Failed to open stream: No such file or directory in /var/www/mysite/src/mail.php on line 7

Fatal error: Uncaught Error: Failed opening required '/var/www/mysite/src/../vendor/autoload.php' (include_path='.:/usr/local/lib/php') in /var/www/mysite/src/mail.php:7 Stack trace: #0 /var/www/mysite/register.php(23): require_once() #1 {main} thrown in /var/www/mysite/src/mail.php on line 7