Mysql error on hosting?

Question

MySQL

Hello. I have a site in php, it lies on the hosting, when I go to the site it writes an error

CDbConnection failed to open the DB connection: SQLSTATE[HY000] [2002] Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2)

what to do in this case, and why?

Answer 1

stackoverflow.com/questions/10720018/cant-connect-...
Maybe the database is on the wrong server?

Answer 2

write to the technical support of the hoster of course, why the heck is it on the toaster then write