Our many month running reporting services suddenly down with the error below. Do anyone have idea how we should start troubleshooting this problems ?
he version of the report server database is either in a format that is not valid, or it cannot be read. The found version is 'C.0.9.45'. The expected version is 'C.0.8.54'. To continue, update the version of the report server database and verify access rights. (rsInvalidReportServerDatabase)