My platformer is not working correctly

What's problem you are encountering?
The player sprite keeps moving to the right even with no keys pressed.

What have you tried that didn't work?
I tried removing the variable from the change x by block.

Post a project example, link, or screenshot:
Here is the link to the project:
https://snap.berkeley.edu/project?user=jikocat&project=Platformer

Fixed!

You never set the X speed variable to 0, it was set at 48.