Can't open scenes on new laptop

I was working on a Unity project on my desktop PC and now I have to continue my work on a laptop. I transfered the whole project from the Documents folder to my laptop’s Documents folder. I opened the project on my laptop and after some time it loaded however the only object I see is the Main Camera. When I try to open any of the scenes nothing happens. The Load Scene window is still there and I can mash the Open button as much times as I want but none of the scenes want to load. What should I do?

Have a look at this (never done it myself):