Inside of NetCommunity right click on one of the documents thats not working and note the URL
Does this match whats coming from NetClassroom?
Click NetClassroom link
Click on <Name's> classes and then click Class Details
Right click on the Document on the right  column under documents here and see its a different URL (/Class Documents) 
Go back to NetCommunity
Edit the Campus Page
Edit the class documents part and fix the FAWeb Documents URL