Settings / Storage it does not allow me to lower the scroll bar

Hello

I have some files in my Minecraft Bedrock (Worlds, Textures and Add-ons) in the game, and I want to delete them, but when I go to Settings / Storage It does not allow me to lower the scroll bar so I can see and delete things I want to get rid of.

I would like you to tell me a way to solve it, or how to remove those files.

Thank you for your time.