Lights only working manually

I have a Ring floodlight with 2 batteries installed and attached to a Ring solar panel I have the app set to detect motion. Everything appears to work BUT motion at night will not trigger the lights to come on. I don't have any schedules setup. I can go to the app and turn on the lights manually and they will go off after 1 minute as set in the app. The setup and lights worked well just as I have described for a year or more with motion detection and no schedule. I don't want the lights on all night but I do want them to go on when they detect motion at night. Any ideas as to what is wrong?