cant find images and javascript

I have first created the site in HTML5 only: https://www.tomrerdahl.no/gabba

And I have installed wordpress on this URL: https://www.tomrerdahl.no

First of all, som of the javascripts (located in a folder “js”) won’t work. I am first of all thinking about the scroll to top icon that shows up in the bottom right corner.

Second of all, my images doesn’t show up… Don’t get this as the css-path should be the same…

Using last version of WP and testing in Safari on my mac.