Screen Replacment caused front camera to not work

I had dropped my phone the other day causing the screen to shatter badly. Both the front and rear camera still worked fine before and after the drop. I had taken my phone into a repair shop to fix the screen and they told me it may be hard for them to fix because my frame work had gotten bent during the drop making it complicated to fit the screen in and that a possibility of a whole new frame may be required. The next day they called saying they where able to fit in the screen without having the change the frame work, but ever since I had gotten it back, my front camera does not work at all (Only shows a black screen and freezes the camera app every time I try to turn the front camera on, same with the rear camera) but only the rear camera will work in apps such as Snapchat. Is this something that is fixable?