Plesk crashed after Update

[webagentur-meerbusch]

Hello everyone

Apparently an update was run tonight. Now I can no longer log on Plesk me.
After trying to start Plesk again I have a MSQL error

"ERROR: PleskDBException: Unable to connect to database: mysql_connect(): No such file or directory /var/run/mysqld/mysqld.sock (Error code: 2002). Please check that database server is started and accessible. (Abstract.php:69)"

I wanted to see the files and realize they are not there. How can I fix the problem? If I are investing the files deleted when restarting mysql.

My system:
Ubuntu 14.04 - Plesk - RAID1
Plesk version - 5.12.30 Update # 25,
Last update March 13, 2016 06:52:06

 

[IgorG]

Check this KB article - https://kb.plesk.com/en/126880

 

[webagentur-meerbusch]

Hello Igor
Sorry doesn't work

When i try to restart mysql, i got
* Stopping MySQL database server mysqld [ OK ]
* Starting MySQL database server mysqld [fail]

 

[webagentur-meerbusch]

Hello Igor
all back
It runs I had to restart only the server