HOW TO RESOLVE Internal error detected: java.lang.IllegalStateException:oracle.sysman.gcagent.target.interaction.execution.ConfigStateMgr

EM 12c : Agent Raises Periodically Alerts for Target Agent : Internal error detected: java.lang.IllegalStateException:oracle.sysman.gcagent.target.interaction.execution.ConfigStateMgr:798 (Doc ID 1458858.1)