Can't launch Parallels after new build

I have been seeing performance issues since "upgrading" to Parallels 12, not in Parallels itself, but in Windows. Given that i spend a LOT more time actually working in Windows than fussing around with parallels, that's frustrating. Also, I used to be able to run two VMs at once and have networking between them. No longer it seems. So, in the hopes of a fix for both I installed the most recent update. Now I can't even launch Parallels, and I get this reference. I do as it says, get no indication of restrictions, and still Parallels won't run. Not sure what I got in that upgrade, but it sure seems useless compared to the better performance, better stability and better functionality of the previous version. Anyway, anyone have any ideas since Parallels Support has one?