I want to upload my app in amazon apstore but it is saying

i want to upload my app to amazon appstore but it is saying

( * Your app contains Copyrighted Content. Please provide documentation demonstrating that you have the right to use S Camera 2 in metadata images by visiting the Contact Us page and selecting the category “Appstore” and the Topic “Content Policy Results”. The documentation must be either a confirmation letter from the intellectual property rights holder or a copy of the applicable license. )

it is a camera app please tell

check if there are any copyrighted material in the app

Is your camera app using stock images off the internet?