My Lightroom stopped working today. I keep getting the message "The Lightroom catalog named "Lightroom Catalog" cannot be opened because another application already has it opened." It then proceed to continue opening the program (20+ times before I can get it under control). My husband tried to remove the program and re-install and the same problem is occurring. I am also getting a message that I will have limited availability until I upgrade my account (I pay monthly and nothing has changed).