Event vCenter Connector Error Msg "failed to run 3PC java.lang.ClassCastException"Issue Setup OOTB vCenter connector for event management, 'Test Connector' and it's successful, but Vcenter connector now showing Error "failed to run 3PC java.lang.ClassCastException" after reload the page. CauseIf we check in the agent logs, we could easy find similar logs below. This is a known issue [PRB1331589] where VCenter connector get stuck in attempt to receive deleted alarm properties.=============03/04/20 17:24:37 (304) Worker-Interactive:ConnectorProbe-69917c62db1bccd082113e4b7c9619fe *** Script: **** vCenterJS ERROR: RESPONSE STATUS ERROR No: 500 03/04/20 17:24:37 (304) Worker-Interactive:ConnectorProbe-69917c62db1bccd082113e4b7c9619fe *** Script: **** vCenterJS ERROR: RESPONSE ERROR : <?xml version="1.0" encoding="UTF-8"?><soapenv:Envelope xmlns:soapenc="http://schemas.xmlsoap.org/soap/encoding/"xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/"xmlns:xsd="http://www.w3.org/2001/XMLSchema"xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"><soapenv:Body><soapenv:Fault><faultcode>ServerFaultCode</faultcode><faultstring>The object 'vim.alarm.Alarm:alarm-1215' has already been deleted or has not been completely created</faultstring><detail><ManagedObjectNotFoundFault xmlns="urn:vim25" xsi:type="ManagedObjectNotFound"><obj type="Alarm">alarm-1215</obj></ManagedObjectNotFoundFault></detail></soapenv:Fault></soapenv:Body></soapenv:Envelope> ============ResolutionPer VMware this is known issue which affects vSphere 4.x, please check out their article link below for more in detail and resolution on this.https://kb.vmware.com/s/article/1039326https://communities.vmware.com/thread/305070