He suggested starting the laptop in SAFE mode. I went to Apple Support, ran through the entire soap opera to a customer service guy on line and sent him a screen shot of the application stalled on the PSE home page. Next I restored my MacBook to factory settings and re-installed the program that was in the Finder app under applications. Going back and forth trying uninstall/install, using Time Machine for restore earlier backups all failed. When I entered it, I got a message highlighted in red that said my registration number was REVOKED. I uninstalled versions of the program and went to re-install PSE 2021 which went ok until I was prompted for the serial number for registration. But once I quit the app, I was unable to restart it. I did a force quit and then shut down and when I restarted the Photo Editor screen showed up.

On PSE 2021 I could get to the start screen and then selecting the Photo Editor, like many have posted here, I get the spinning ball saying the workspace is loading, which never does.

After that I was unable to load PSE 2021 or the earlier version PSE2020. I wish I had come to this Community page earlier.

Adobe photoshop elements 14 host file