A customer is unable to login to the Agent Workspaces with Multimedia Channels. Given these log messages: 2018-04-24 07:01:11,358 [pool-128-thread-1] config.OcpOceanaMonitorWASProduction INFO - [M:setOceanaHeartbeatMessage] [T:null].OceanaHeartbeatMessage.MessageText:[GigaSpaces Connection OK. Database connection is Broken. ORC Rest service is reachable (http 200). AgentControllerService Alive, Cluster Status ACTIVE] Status: [ERROR] 2018-04-24 07:02:09,853 [pool-128-thread-1] serviceability.AgentControllerStatusTask ERROR - [M:AgentControllerStatusRunnable] [T:null]. Error in DB Connection com.avaya.ocp.db.util.PersistenceException: java.sql.SQLException: [Cache JDBC] Communication link failure: Connection refused at com.avaya.ocp.db.util.DbConnFactoryDbcpPool.getDbConnection (DbConnFactoryDbcpPool.java:166) What is causing these log messages?