Web interface page displays only "Index of /"

Hello,
After an upgrade to Ubuntu 14.04.2, when I try to open the ISPConfig web interface, I get a generic page like this:

Trying to enable fcgi results in the following:

Code:

 a2enmod fcgid
Enabling module fcgid.
To activate the new configuration, you need to run:
  service apache2 restart
root@server:/tmp/ispconfig3_install/install# service apache2 restart
* Restarting web server apache2                                                                [fail]
* The apache2 configtest failed.
Output of config test was:
apache2: Syntax error on line 140 of /etc/apache2/apache2.conf: Syntax error on line 1 of /etc/apache2/mods-enabled/fcgid.load: Cannot load /usr/lib/apache2/modules/mod_fcgid.so into server: /usr/lib/apache2/modules/mod_fcgid.so: cannot open shared object file: No such file or directory
Action 'configtest' failed.
The Apache error log may have more information.

Could you help me find out why this is so?
Thank you!

 

That's what I've been trying to do for the past hour. But, when I try to run

Code:

apt-get install apache2-mpm-worker  libapache2-mod-fcgid

I get the following:

Code:

Reading package lists... Done
Building dependency tree
Reading state information... Done
apache2-mpm-worker is already the newest version.
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
libapache2-mod-fcgid : Depends: apache2.2-common but it is not going to be installed
E: Unable to correct problems, you have held broken packages.

No idea what to do next.

 

Code:

Reading package lists... Done
Building dependency tree
Reading state information... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
libapache2-mod-fcgid : Depends: apache2.2-common but it is not going to be installed
E: Unable to correct problems, you have held broken packages.

 

Already tried something similar, but got the message that it would break something else

Code:

apt-get install --reinstall libapache2-mod-fcgid apache2.2-common
Reading package lists... Done
Building dependency tree
Reading state information... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
apache2.2-common : Breaks: libapache2-mod-fcgid (< 1:2.3.6-1.3) but 1:2.3.6-1.1 is to be installed
E: Unable to correct problems, you have held broken packages.