[Q] Requesting - The Need Stock Rom for Celkon A200 Mobile

I have rooted the mobile using "root with restore by bina4y". After doing this I tried many things like installing SuperUser SU, Rom Manager, root external 2 internal sd, etc., but unfortunately my camera has stopped responding. When opening the default camera it shows "cannot connect to the camera" or when opening the Camera FV-5 it shows "Error opening camera driver. A Device restart might be required" or simply "a black blank screen", rest of the other things are working fine. After this I did take a backup but unfortunately even after restoring the backup, its has the same problem of camera. Also, I have installed many other software's of the camera like Night Camera, Camera FV and uninstalled. Power off , Restart or rebooting using Rom Manager etc., nothing seems to work.

Kindly, Please I am requesting everyone to help me out asap!!

NOTE : I am in urgent need of Stock Rom of the mobile device "Celkon A200" which I will appreciate gratefully.