Why the downloaded image shows that it appears that we don’t support this file format

I’m hosted a static html file on netlify here is the url…
https://laughing-lewin-eb42f8.netlify.app/

I’m successfully download the images when I trying to open it it show that it appears that we don’t support this file format

I didn’t understand why it’s happening and can anyone tell me please how can I fix this issue.