Vcenter HA error "The object ManagedObjectReference has already been deleted or has not been completely created"

Hi to All

I want to config Vcenter HA but when click 'SETUP VCENTER HA' get this error:

"The object ManagedObjectReference has already been deleted or has not been completely created"

vcenter 6.7.0 42000

3 esxi host 6.7

can anyone one help?

thanks.