I have been running my Parallels desktop on a Mac and it had worked for over a year. All of a sudden it only boots to a black screen and I can't do anything. When I initiate the application to goes to the Suspended screen. I play the Play button, and it goes up to 100% but then leaves me on a black screen. Any keyboard or mouse clicks make a beep and do nothing. Advice appreciated!
I have the same issue, Catalina update to 10.15.7 (19H1217) and Parallels Version 16.5.0 (49183). Black screen of misery. Please help TIA