Can't login to Media Browser

Hi all,
I made changes to my site-config in Apache2 because it was necessary for another web-app that runs on my server. After that change, I'm not able to login to the Media Browser.
The logging shows this error:
This is my 'default' site config in Apache2
Can you help me please?
I made changes to my site-config in Apache2 because it was necessary for another web-app that runs on my server. After that change, I'm not able to login to the Media Browser.
The logging shows this error:
This is my 'default' site config in Apache2
- Code:
ServerAdmin webmaster@localhost
DocumentRoot /var/www
<Directory />
Options FollowSymLinks
AllowOverride All
</Directory>
<Directory /var/www/>
Options Indexes FollowSymLinks MultiViews
AllowOverride All
Order deny,allow
allow from all
Satisfy all
</Directory>
ScriptAlias /cgi-bin/ /usr/lib/cgi-bin/
<Directory "/usr/lib/cgi-bin">
AllowOverride None
Options +ExecCGI -MultiViews +SymLinksIfOwnerMatch
Order allow,deny
Allow from all
</Directory>
ErrorLog ${APACHE_LOG_DIR}/error.log
# Possible values include: debug, info, notice, warn, error, crit,
# alert, emerg.
LogLevel warn
CustomLog ${APACHE_LOG_DIR}/access.log combined
Can you help me please?