User281315223 posted
The primary issue here is that you are referencing a file from your local filesystem, which might work locally (since just a plain HTML file would know about adjecent files in your file system), but once you host it in a web server, you can think of it as
in a sandbox (e.g. it can only access what the "site" has access to).
If you wanted to resolve this, you'd need to create a folder relative to where your site is being hosted (e.g. if you root is wwwroot, then create a wwwroot/images folder and store your image in there). Then just reference your image relatively from that
root (e.g. src='/images/Krebs2.jpg')