cannot delete files or photos

[Android Central Question]

For some reason I can't delete files or photos ...either from file folder or from gallery. It lets me select the photo or file... I hit the delete button and get the "delete image?" pop up but neither the cancel or delete buttons respond... I have to back out

 

[B. Diddy]

Welcome to Android Central! Which phone? It could be a screen overlay problem, which is often from a screen dimming app. See this article: https://www.howtogeek.com/271519/how-to-fix-the-screen-overlay-detected-error-on-android/