The installation doesn't start. Error 404

Hello, I have extracted SuiteCRM 8.3 into the subfolder https://www.sitename.com/mebi/, configured permissions, Apache modules as per the documentation


, and the .htaccess is

<IfModule mod_rewrite.c>
RewriteEngine On
RewriteRule .* - [E=HTTP_AUTHORIZATION:%{HTTP:Authorization}]
RewriteBase /
RewriteRule ^index\.php$ - [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
</IfModule>"

What am I doing wrong?