How to upload my project symfony 5 with FTP

  ftp, php, symfony

since few days i would like upload my website on symfony 5 with ftp;
But it doesn’t work, I have try to install :

composer install --no-dev --optimize-autoloader

composer dump-autoload --optimize --no-dev --classmap-authoritative

composer require symfony/apache-pack

before to upload my project.

On my ftp server, I have uploaded in www/mySuperProjectSymfony and I have white page.

I want to know how to upload in my FTP

Source: Symfony Questions