Good Sam's campground APP

On my new  Samsung S25 phone (android), I can't get the Good Sam's Campground site to work.    It appears to open, but when I go to search for campgrounds, it just sits with a blank screen.   My phone has App Version 3.0.15.   I tried to update it, but nothing happens.   I have deleted the APP and reloaded it, but no help.   Any ideas?

Frank