Top center of garage door bumping opener rail as it closes. Does anyone know the fix for this?
In your 3rd 4th and 5th picture you see the top roller which is adjustable. Check them on each side of the door to see if the adjustment bolts have become loose. And then as others have said check all the other nuts and bolts to see if any have loosened. If any have make sure it's not adjustable before you tighten it. In fact I see a loose bolt in one of the photos that's probably causing the problem.