How to fix it
Its very easy to fix.
My Way - I did it -
If you want a video toturial,Go to channel ThinesGaming
1.Download the zip file (Attachment Below.Click it to download)--Don't extract it!!--
2.Boot your phone to recovery mode by pressing Vol-up+power button+home button.Once your samsung logo came,release the powerbutton only.
3.Install the zip file.-Install zip-Where you downloaded it-Yes,install CameraFiles-signed.zip
4..Wipe Cache & Dalvik (optional- if you want to)
5.Start the camera app.