Parallels "Error Can't connect to server" message

This is the 3rd time trying to update Parallels. I have a yearly subscription and every time I update it breaks the application and it won't launch. Gives me an error "Error Can't connect to server". I've tried everything in your supposed "Fix" solutions. They do not work! The only way I could get it to work again has been to reinstall my Mac OS Mojave 10.11.6. I have reinstalled Mojave 2x now. This is unacceptable! PLEASE FIX THIS!!!

 

Shameful that tech support puts up a link that absolutely does not work, and a customer has to find a possible solution!
Here's a post that people are saying it works.
https://forum.parallels.com/threads...ls-services-after-upgrading-to-16-1-0.351255/