Since upgrading nagios-mysql a couple of weeks ago nagios runs and sends email notices, but clicking for a Tactical Overview presents the error could not read host and service status information.
Before the update everything worked perfectly.
This is the error [http://www.nagios.org/faqs/viewfaq.php?faq_id=228&expand=false&showdesc=false](hyperlink url), but This solution does not fix my problem.
Other error is in event log: Error: Could not connect to MySQL database '' on host '' using username '' and password 'XXXXXX'. Retention data will not be processed or saved!
Help me, please!!!!!!!.