Mac OS Catalina: Photoshop CC 2015 Stopped Working. App to Install Current Version Does Not Work

[#1]

I have been using Photoshop CC 2015, but since installing Catalina on my desktop it has stopped working.  I tried to install the current version, it would not install.  Support suggests using Uninstaller. first. I tried that. Uninstaller also does not work and does not provide any feedback messages at all.  What can I try next?

[#2]

I have been using Photoshop CC 2015, but since installing Catalina on my desktop it has stopped working.  I tried to install the current version, it would not install.  Support suggests using Uninstaller. first. I tried that. Uninstaller also does not work and does not provide any feedback messages at all.  What can I try next?

[#3 · Accepted solution]

Try running the Adobe Cloud Cleaner tool.

https://helpx.adobe.com/au/creative-cloud/kb/cc-cleaner-tool-installation-problems.html