Plesk Automation :: MySQL Server Not Starting Anymore - Failed To Restart Service

What could I fix by trying to start mysql server, recieve following errors:

plesk interface:

Code:
Failed to restart the "mysql" service.
Cannot start/stop/restart service: Rather than invoking init scripts through /etc/init.d, use the service(8)
utility, e.g. service mysql restart
Since the script you are attempting to invoke has been converted to an
Upstart job, you may also use the stop(8) and then start(8) utilities,
e.g. stop mysql ; start mysql. The restart(8) utility is also available.
start: Job failed to start

from the console:

Code:
sudo service mysql start
start: Job failed to start

Code:
mysql -uadmin -p`cat /etc/psa/.psa.shadow` psa
ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2)
output of plesk_11.5.30_reset_instance_data.log:

[Code] ...