Issue in staring vm above 4 Cores.

[Abishek]

Hello everyone,

I am facing trouble in starting vm above 4 cores in XCP-ng 8.2 with cloudstack 
4.15.1.
I receive the following error:
 nameLabel: Async.VM.start_on
     nameDescription:
   allowedOperations: []
   currentOperations: {}
             created: Sun Jul 18 13:26:27 NPT 2021
            finished: Sun Jul 18 13:26:27 NPT 2021
              status: failure
          residentOn: com.xensource.xenapi.Host@d0a6e290
            progress: 1.0
                type: <none/>
              result:
           errorInfo: [VALUE_NOT_SUPPORTED, VCPUs-at-startup, 4, value greater 
than VCPUs-max]
         otherConfig: {}
           subtaskOf: com.xensource.xenapi.Task@aaf13f6f
            subtasks: []
Where can I increase this value?
Thank You.