Yes, the screenshot looks good. It shows used storage same as provisioned - I guess this was thick provisioned, that is fine... Is there free space on the drive? SSH to the VA to confirm.
Aside from maybe running out of space, I'm unsure what is causing this issue - perhaps a corrupt deployment? Your snapshot - was that taken before the issues - if so, you should probably try reverting.
If it were me, I would cut my losses and try deploying another appliance. So far, I have had very good experiences with the vCO Appliance and use it in multiple locations daily for my test/dev work.