URL is showing doc root directory and not page

[most4tune8]

I recently installed the latest ISPConfig over my previous one and now my urls show the doc root directory.
http://www.kenrules.co.za www.leejames.co.za and www.familyhistory.za.net.
I cannot update the details in ISPConfig either. Lots of the information is missing and it wont let me update it. I get error like
This website already has 0 user(s). You cannot decrease the number of users.
This website already has 0 domain(s). You cannot decrease the number of domains.
This website already has 0 database(s). You cannot decrease the number of databases.
Any suggestions will be appreciated. I would rather not have to do a complete re-install.

[falko]

Please check if the ISPConfig database is existing and if it's empty or not.

What's the output of

df -h

?