Why is my phone asking me to turn off screen overlay

[Android Central Question]

I can't send pictures on messenger or Facebook because my phone is asking me to turn off screen overlay how do I do that

 

[Jagan I]

Screen Overlay refers to any App displaying anything over all other Apps. This could be the Facebook's bubbles or some screen dimmer. You have to find which App is currently active as a Screen Overlay and disable it temporarily.