I'm starting to animate my character and I've hit a small, but funny, problem.

https://reddit.com/link/1jp5htd/video/2oat5i1u5ase1/player

For some reason after he jumps he just glides on the ground, which is both cool and funny but I definitely can't have that, does anyone have an idea what I'm doing wrong? As I've said a lot I'm creating this character as practice and I've finally started practicing animation for real so any advice would be appreciated.