In the images you are using that will not load, you are defining them as /assets/imagetoload.png instead of assets/imagetoload.png. I tested this out and it did fix the issue. Here's an example:
Hope this fixes your issue!
This is the one line of images that are not loading. As you can see, I've tried both ways of loading the images in and it's still not working...
They're being loaded incorrectly again in this image. Testing it out myself, you're using behance-Logo.png instead of the correct behance-logo.png, as well as Github-Logo.png instead of the correct GitHub-Logo.png. Please make sure to check the case-sensitivity of your asset files!
Hope this helps!