Why is a yellow light showing up

[AC Question]

When its dark and my screen is bright when i try to make a selfie with front camera a yellow light shows up
S7 edge smg935f europe model if anyone can solve this please answer

 

[Auroni]

I have this problem too when i put sonething in front camera it goes black than i scroll down to see wifi bluetoth and the others and it appears that also on dark when screen is bright when it has a low bright it doesent appear also on the sunset it doesent appear and outside