you need to go to the admin area to make it so members can submit deviations to the follders(you'll need to do this whenever you make new follders aswell). You click on members, and scroll down on the rite till you get to the part that says about being able to submit to featured (if you want you don't have to let members submit to featured, as long as there are other follders) and you click 'show all follders', then you should know what to do from there.
Hope this helps