Animation leaving traces

I create 6 frames in my animation for my sprite. However, when the animation runs, it doesn't delete the previous frame. So for instance, if I am at frame 6, I still can see frames 1-5, creating almost a traces effect. Is there anything I can do to change this, so my animation of the sprite only shows the current frame? Thank you.

It sound like you forgot to add screen.clear() to your draw() function.

use screen.clear(color)or leave the color blank to automatically do the blank background