I have downloaded the oracle VM virtual box and zip folder of my homework, how should I move the downloaded ZIP folder to the VM? and import the project into YAKINDU?
You have two options:
If you are unfamiliar with VirtualBox, I would recommend the second option.
Is it possible, that you are trying to import the wrong zip file?
The name of the zip file should be something like hu.bme.mit.inf.symod.f[a letter and numbers here].homework.zip.