Empty response error when importing vCenter wild

Hi. I was trying to import some wilds from out vCenter cluster to OpenNebula. All the other wilds are imported successfully but only one of the wilds getting this error:

Empty response received from server. Check your setup to avoid timeouts.

I’ve tried to import it again after a few days and no luck. I’m still getting the same error.

Is there anything that I can check on the logs to find out about this? Thanks a lot for the help and response.