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
If the issue still persists, kindly register your concern in the Samsung Members app (Samsung Members app > Get help > Feedback > Error report).
