"Open" and "Open in Camera Raw" in Bridge CS6 are both greyed out

iMac running Mojave 10.14.1.This just happened; the File dialog box now shows both "Open" and "Open in Camera Raw" are both greyed out. I can only do "Open Recent". Is there a fix for this? I used to be able to go to my Photos library, look at my Raw files, select them, and edit them. This just stopped.