Hi, thank you for contacting JustAnswer.com. My name is Russell. I will do my best to provide the right answer to your question.
The superficial answer that I can give is simple:
There is a 'stack' of
img src="such and such URL"
references, and when you take 'such and such URL', you find that the files get a 'not found' error. a File Not Found 404 error.
That means that those img files are NOT where the URLs in the stack say they should be.
Check, find, the proper URLs. Insert them in place of the 'stack' of incorrect URLs. After that, it should work - or at minimum, be much closer to working.
If you need any guidance on how to do so, let me know... my first suggestion, check whether the folder
exists in the KoernerContractors.com site. And check whether those img files referenced in the 'stack' are actually in the /img/ folder, as opposed to in the basal folder of the site.