i have site (wordpress)
letsdrinktea.ru
after something action (plugin - import content) i
i get error
Error connection to database
I’m not an expert in server action((
i itemp connect to DB by mysql wordckbrench . but, no result (

if it helps, I can use this panel
http://ajenti.org/

I know the name of the database
I know her password
I know the database user
I know his password
It can be such that the database does not work?
Please, help me.

p.s i have backup and have actual database
p.s2 debian 188.166.37.212 Active 512 MB 20 GB ams3
HTTP : 500