Login server error occured

From directus created by rnnyrk : directus/directus#1282

Version Info

• Directus version and branch: 6.3.4
• PHP version: 5.5.9-1ubuntu4.17
• MySQL version: Ver 14.14 Distrib 5.5.49
• Web server: Apache(2)
• OS name and version: macOS El Captain

Expected Behavior

Install Directus as a local installation. Login using email and password.

Actual Behavior

Install Directus as a local installation. Getting error when submitting email and password. (I see in the console that there is a 404 error to the api path.)

Steps to Reproduce

1. Install a fresh installation
2. Try to log in

Logs or Screenshots

Same as: https://github.com/directus/directus/issues/1239

Issue

My question is very similar to the one above, but I can't seem to fix it with the solution given in that topic. I'd a fresh install, but trying to login keeps returning a "Server error occured". In my root there is a .htaccess and everything else from this file:

<ifModule mod_rewrite.c>
    RewriteEngine On
    # Uncomment this if you are getting routing errors:
    RewriteBase /
</ifModule>

Also /api/.htaccess contains everything from the example file except the change I commented RewriteBase /api out. When I execute a2enmod rewrite it logs that mod_rewrite is allready installed.

I've also tried editing the VirtualHost files. In /etc/apache2/apache2.conf I've configured it as shown below. As said in the documentation I'd add the AllowOverride All, but unfortunately it didn't work.

<Directory /var/www/>
        Options Indexes FollowSymLinks
        AllowOverride None
        Require all granted
</Directory>

<Directory /var/www/directus/>
        Options Indexes MultiViews FollowSymLinks
        AllowOverride All
        Order allow,deny
        Allow from all
        Require all granted
</Directory>

This topic https://github.com/directus/directus/issues/1038 also suggested to change FollowSymLinks to SymLinksIfOwnerMatch, but this didn't change anything.

In /etc/apache2/sites-available/directus.conf I do have the code as following:

<VirtualHost *:8080>
    ServerName directus.DOMAIN.com
    ServerAlias directus.DOMAIN.com
    DocumentRoot /var/www/directus
    DirectoryIndex index.php
    ErrorLog ${APACHE_LOG_DIR}/error.log
    CustomLog ${APACHE_LOG_DIR}/access.log combined
</VirtualHost>

After I did some changes I always did run sudo service apache2 restart which logged a [OK] status.

I don't know how to fix anymore. Someone who can help me out?