Lightroom classic won't launch

Hi, a new user and first time here. I recently updated my Mac Mini to OS13.1 and also upadated all my adobe apps. Lightroom classis is running version 12.1. I cannot now open Lightroom classic, the box/emblem appears in the bottom dock for a second or so, with a dot underneath it. It the disappears and nothing more happens. Adobe Bridge, Photoshop and Lightroom CC are all working as normal? Any help would be greatly appreciated. Rowland