I'm using LR and PS CC on an iMac. This morning I had a catalog open and it backed up when I switched to another catalog. My computer started going crazy and I had to restart it. Just now I tried to open that catalog again and it's not in the list of catalogs available to open. I can find the backup folder in Finder, but how do I get that catalog open again? When I selected "create new catalog" and chose the backup folder that is in Finder, none of my folders or collections opened up.
To open the previous catalog, double click it in Finder or select it when you go to menu /file/open/ .