Hi, I have upgraded the site from 3.70 to 4.60 and when i deploy my 4.60 site into 3.70 site in IIS like pointing the old site to the 4.60 site. it works well until copy and paste the images or if i clear cache the site keeps loading and is not opening.

when i see the log i still see that the current site is trying to access the old image path that is
GET /content/images/thumbs/imagename.jpeg instead of /images/thumbs/imagename.jpeg

where does the log comes from how to change the url or is it the browser cache?
if yes then clearing cache crashing the site since it is kept loading for a long time.
Please advise