hi..
you have at least 2 problems:
- mysql is not running or you're missing a database
- clamd is unable to scan emails
just guessing, but the issues let me thing you've something wrong with your fs
can you take a look at /var/log/messages, /var/log/dmesg?
can you tell us something about your server history?
P.S. Xmas.. we could not answer you in real time
