Last Night the server broke Ubuntu 12 and Plesk 11.09

hello.

I dont know what is the problem, last night at 4:30 am I recived emails from smf that can not connect with Mysql.

this morning I can not enter to plesk, not have ftp, not work Mysql, only can enter via SSH.I think that the system realease a upgrade and broke the system

I can not resolve this is bigger for me.I put autoinstaller but in the folder opt/psa/sbin but nothing.

If any people know anything