I check twice, and the .htaccess file exists and is present in the directory /var/www/html on my server.
I red the troubleshooting page, but the issue is the same. I don’t know pas directory i have to put in the option RewriteBase.
You need to ensure AllowOverride All is enabled for your virtual host/apache. If it is not, it won’t even read the .htaccess and if that is the case anything in there is irrelevant. Are you sure that file is even being read?