does the vCenter boot up until there is a blue screen at the console (yes blue, not the windows blue screen error )
If yes you can open a browser, go to https://ip-of-your-appliance:5480 and configure it.
I get the below error .
Network boot from VMXNET3
Windows Deployment Services PXE Boot Aborted
PXE-MOF Exiting Intel PXE ROM
Operating System not found
Not sure if VCVA is booting from Network. Can you please change boot option of the VM to hardisk. If it is there then there might be chances that OS got courrupted. It would be helpful if you can share the screenshot of the error.
As per the error its trying to boot from PXE.
I would recommend to inspect what is causing this swap error and deploy the Appliance new.
Also check the checksums of your downloaded ova file. Maybe your download is corrupt?