[Error Message] SQL error 2002

[JimAttrill]

all of a sudden I get "MyBB internal error" 
SQL error 2002 - no route to host
Query:[READ] Unable to connect to MySQL server

What should I do now?

Cancel that - 10 minutes later it works and I haven't done anything at all except post this ....

[.m.]

please contact your web host.

This occurs when your MySQL server is down or experiencing an issue and MyBB
cannot connect to it. You will have to contact your host with this error message.