no me abre la version 14

Do you get any error messages? If yes, please post the exact message(s) word-by-word.

Please check if there's a .lock file next to the LR catalog in the appropriate folder.

If  there's such a .lock file it must be deleted manually.

More informations about this, you'll find here: 

The Lightroom catalog cannot be opened because another application already has it opened - lrcat.lock (adobe.com)

Is your system up-to-date? Do you have installed all recent updates and patches for the operating system and the device drivers, especially the graphic driver. If you have a NVidia graphic card installed, make sure that you are using the recent Studio version of the driver, not the Game Ready version.

Try reseting the Preference File. https://www.lightroomqueen.com/how-do-i-reset-lightrooms-preferences/