Hi there - the image asset link in your code has “thumbnails” in the title but the URLs of the images in Assets do not - did you copy and paste that asset link from another project or a previously removed asset?
Your code:
cdn.glitch.global/347d6179-2ccb-4e22-be03-0dcf589328ad/thumbnails%2Fred-panda-close-600px.jpg?1655054736919
Assets url I copied:
cdn.glitch.global/347d6179-2ccb-4e22-be03-0dcf589328ad/red-panda-close-600px.jpg?v=1655152922159
I think it might be a result of some people having a habit of copying images through Right Click → Copy Image Address, which works great for sites that don’t optimize images but not thumbnails in this case.