Discuz! info: Can not connect to MySQL server

Time: 2018-10-24 5:38am
Script: /jury-decides-doctor-responsible-for-stillbirth-of-child-to-pay-mother-over-1-6-million-t805029.html

Error: Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (11)
Errno.: 2002

Similar error report has beed dispatched to administrator before.