Apache2 Blank page after installing from source

Installation Issues
5

Thank you for you response.

I read that discussion, and I was gonna do the changes that JamesBond suggested to the .htaccess file. ad this discussion: Passbolt 3 CE - Apache configuration - #11 by farfade

However, it seems that those changes comes with passbolt, at least the source install.
As my .haccess in the webroot folder ./var/www/passbolt/webroot/:

<IfModule mod_rewrite.c>
    RewriteEngine On
    RewriteCond %{REQUEST_FILENAME} !-f
    RewriteRule ^ index.php [L]
</IfModule>

I tried to also add:
RewriteRule ^(.*)$ index.php (For sanity sake), and that also did not help.