Hello,
first of all I really hope to be able to solve the problem because I use this application a lot on my computer.

I have a MacBook with macOS 13 and after activating a certain setting with the word tray inside the Library application it stopped working while the reader continues to work. I tried to uninstall and reinstall everything but it doesn't work, if I try to open the library it shows no signs of life, even if in activity monitoring it shows me that the application is active.

You probably activated the option to start the app on the system tray, is the app there? you should see and icon there…clicking or double clicking on it should open the window

I bet I'm one of the dumbest users you've ever talked to .
Forgive me for wasting your time with my macaronic English and congratulations for the speed and patience with which you answered me. Thank you so much !!!!!!!