I recently signed up for the monthly Lightroom for Macbook desktop subscription. I have used the program previouisly with no issues and today when I went to edit photos, I am unable to add photos (this option is greyed out) or view my previously installed presets or editied photos. I checked my subscription and it is in good standing. I am unsure how to add photos and begin to edit again. I have already tried to close the program and restart the computer. Any help would be appreciated, Thanks!