WARNING(2): "require_once(/home/www/web1225/html/web/shop/vendor/composer/autoload_real.php): failed to open stream: No such file or directory"

Fatal error: require_once(): Failed opening required '/home/www/web1225/html/web/shop/vendor/composer/autoload_real.php' (include_path='/usr/local/php71/lib/php:.') in /home/www/web1225/html/web/shop/vendor/autoload.php on line 5
COMPILE ERROR(64): "require_once(): Failed opening required '/home/www/web1225/html/web/shop/vendor/composer/autoload_real.php' (include_path='/usr/local/php71/lib/php:.')"