I have a 14-years old Nikon D50 (approx. 13,000 shots) and it started to taking white pictures only, sometimes I can see something (example below). After some time the pictures were OK. So I took it some trip to make photos and it was making nice pictures again. But then suddenly again only white photos. Sometimes they are not entirely white, but mostly yes. I tried different settings, M,P,A, fully-automatic, landscape but nothing helped. I tried two different lenses.
When I switched to burst mode and set the program "Sports", the first photo is white but then it can shoot like more than 10 normal photos.
What can be the mistake?