/mcp[ClusterID=String][NodeID=String]: Unknown exception.. Explanation An unknown exception occurred while trying to read CFB configuration information. Recommended Action Device will not start; fix problem and restart service. Error Message %UC_IPVMS-6-kReadCfgDblGetChgNotifyFailed: %[AppID=String][ClusterID=String] [NodeID=String]: Get change notification port failure.. Explanation The database layer was unable to find change notification port and is using default. Recommended Action If default change notification is incorrect or change notification does not work, add value into database and restart service. 5/24/26, 3:34 AM System Error Messages for Cisco Unified Communications Manager 15 - Cisco https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/err_msgs/15_x/ccmalarms15.html 51/343