Warning: require_once(/var/www/html/vendor/autoload.php): Failed to open stream: No such file or directory in /var/www/llqms/html/back/include/mailSend.php on line 7

Fatal error: Uncaught Error: Failed opening required '/var/www/html/vendor/autoload.php' (include_path='.:/usr/share/php') in /var/www/llqms/html/back/include/mailSend.php:7 Stack trace: #0 /var/www/llqms/html/back/batch/batch_cap_reply_check.php(12): include_once() #1 {main} thrown in /var/www/llqms/html/back/include/mailSend.php on line 7