que significa isto??

[offpring]

boas!! as veces quando quero entrar no forum aparece a seguinte mensagem:
Server Error in Forum Application
An error has occured while writing to the database.
Please contact the forum administrator.

Support Error Code:- err_SQLServer_getUserData()_update_last_visit
File Name:- functions_login.asp

Error details:-
Microsoft OLE DB Provider for SQL Server
Timeout expired

alguem sabe do que se trata??