R3.0-vcenter- vm deletion creating an exception in vcenter pluggin

Vcenter as compute setup- vm deltion from horizon creating exception in plugin

2016-01-14 14:51:09,538 - INFO [Thread-4:VCenterEventHandler@44] - ===============
2016-01-14 14:51:09,538 - INFO [Thread-4:VCenterEventHandler@45] -
Event Details follows:
2016-01-14 14:51:09,538 - INFO [Thread-4:VCenterEventHandler@47] -
----------
 Event ID: 216117
 Event: com.vmware.vim25.VmPoweredOffEvent
 FullFormattedMessage: d5b091e2-e307-4d68-bfb8-c89887013def on 10.84.14.7 in shaju-GE is powered off
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2016-01-14 14:51:09,538 - INFO [Thread-4:VCenterDB@598] - Found in cache <datacenter shaju-GE, vCenter https://10.84.22.104/sdk>.
2016-01-14 14:51:09,538 - INFO [Thread-4:VCenterDB@639] - Found in cache <dvs sec_dvswitch, datacenter shaju-GE, vCenter https://10.84.22.104/sdk>.
2016-01-14 14:51:09,548 - INFO [Thread-4:VCenterDB@749] - Found <host 10.84.14.7, datacenter shaju-GE, vCenter https://10.84.22.104/sdk>.
2016-01-14 14:51:09,556 - ERROR [Thread-4:VCenterDB@773] - Failed to retrieve <virtual machine d5b091e2-e307-4d68-bfb8-c89887013def, host 10.84.14.7, datacenter shaju-GE, vCenter https://10.84.22.104/sdk>.
2016-01-14 14:51:09,557 - ERROR [Thread-4:VCenterNotify@616] - Error in event handling, resync needed
2016-01-14 14:51:09,557 - ERROR [Thread-4:VCenterNotify@618] - java.rmi.RemoteException: Failed to retrieve <virtual machine d5b091e2-e307-4d68-bfb8-c89887013def, host 10.84.14.7, datacenter shaju-GE, vCenter https://10.84.22.104/sdk>.
        at net.juniper.contrail.vcenter.VCenterDB.getVmwareVirtualMachine(VCenterDB.java:774)
        at net.juniper.contrail.vcenter.VirtualMachineInfo.<init>(VirtualMachineInfo.java:78)
        at net.juniper.contrail.vcenter.VCenterEventHandler.handleVmUpdateEvent(VCenterEventHandler.java:85)
        at net.juniper.contrail.vcenter.VCenterEventHandler.handle(VCenterEventHandler.java:70)
        at net.juniper.contrail.vcenter.VCenterNotify.handleChanges(VCenterNotify.java:447)
        at net.juniper.contrail.vcenter.VCenterNotify.handleUpdate(VCenterNotify.java:355)
        at net.juniper.contrail.vcenter.VCenterNotify.run(VCenterNotify.java:607)
        at java.lang.Thread.run(Thread.java:745)

2016-01-14 14:51:09,558 - INFO [Thread-4:VncDB@157] - Checking if api-server is alive and kicking..
2016-01-14 14:51:09,558 - INFO [Thread-4:ApiConnectorImpl@231] - >> Request: GET, /projects
2016-01-14 14:51:09,563 - INFO [Thread-4:ApiConnectorImpl@257] - << Response Status: HTTP/1.1 200 OK
2016-01-14 14:51:09,565 - INFO [Thread-4:VncDB@172] - Api-server alive. Got the pulse..
2016-01-14 14:51:09,566 - INFO [Thread-4:VCenterDB@264] - ServiceInstance read timeout set to 30000
2016-01-14 14:51:09,767 - INFO [Thread-4:ApiConnectorImpl@231] - >> Request: GET, /virtual-networks
2016-01-14 14:51:09,771 - INFO [Thread-4:ApiConnectorImpl@257] - << Response Status: HTTP/1.1 200 OK
2016-01-14 14:51:09,773 - INFO [Thread-4:ApiConnectorImpl@231] - >> Request: GET, /virtual-network/9bc0f48d-952d-4490-bf51-e1d04cf37951
2016-01-14 14:51:09,777 - INFO [Thread-4:ApiConnectorImpl@257] - << Response Status: HTTP/1.1 200 OK