Dear Samsung Member,
Greetings from Samsung Customer Support!
We acknowledge your query and apologize for the inconvenience caused to you and will surely assist you regarding the same and please follow the easy troubleshooting steps which might help to solve the issue.
1) Please clear data or cache of Camera Application(Tap Settings>Apps>Camera>Storage>Clear Cache/data)
2) Reset the Device:- Kindly create data backup of your device via SMART switch mobile application or http://www.samsung.com/in/support/smartswitch pc suite
How to reset :- Settings>General Management>Reset
In case the issue still occurs. Please register your concern in Samsung Members Application (Open Samsung Members Application > Support> Tap on error report > Type your query > Send).
Thank you for writing to Samsung.
Samsung Customer Support