I play on a kindle fire. Ever since I have purchased packages for Minecraft, every time I slay an animal it does not drop meat, skin, string etc

I play on a kindle fire. Ever since I have purchased packages for Minecraft, every time I slay an animal it does not drop meat, skin, string etc. I have only one world that does not glitch.

example: I am not able to build a fishing pole because after slaying a spider it does not drop its string. It disappears the moment it hits the ground.