can't connect to cognos ReportNet

[MAJLI]

when i try to connect to cognos ReportNet via Internet explorer i take this message :Content Manager is unable to access the content store database. Verify your database connection parameters and then contact your database administrator.
yesterday was everything ok.

 

[christenhusz]

server/service down or user account changed/disabled for read and write actions to the content store database?

regards,

 

[JGirl]

You may also find that if you stop the database that the content store runs on you may have to restart the reportnet service AFTER the database has been restarted?