All programs require licensing and will not open
This appears to be a popular problem but I have been troubleshooting for an hour and none of the suggested fixes have worked.
When I try to open a CC program (for example, right now I'm trying to open Photoshop CC) on my Mac, an Adobe window pops up telling me that I need to sign in. That has been happening to me for several weeks, and usually I just sign in and it says it's licensed the program and I'm allowed to use it now. It was a nuisance, but not a problem. Now I sign in, and the app bounces in the dock for a minute like it does when it is opening, and then disappears and I am faced with the same Adobe pop-up window.
I have uninstalled and reinstalled Creative Cloud, and it is up to date. I have uninstalled and reinstalled Photoshop, and it is up to date. I have changed my Adobe password. I have created a new administrator account on my computer and tried to open the program on that account. My Adobe programs and files are on my desktop. All of these things have been suggested to fix the problem. None of it has worked, and I cannot open any of the programs that I paid hundreds of dollars for, nor can I do any work!