First of all, please make sure images are uploaded to server using binary format. Secondly, check if HTML source code has the correct path to images.
For example, in your html code you need to have something like src=images/image.jpg which the file should be in public_html/images folder
Plus file names are case sensitive on most hosting server, so if you image is named “image.jpg” and your source code contains a link to “Image.jpg”. The name and case much be matched otherwise it will not be displayed.