Dreamweaver design view is no longer displaying images.

Hello there,

I started coding a webpage a while back and I have just got back to it. Before, my images displayed as they should in the dreamweaver design view.

And now they are only displaying on live preview.

The is also CSS font missing and my slider is showing at the wrong size in my design view.

This is the icon that is displaying where an image should be.

Any suggestions to fix this?