I am trying to replicate a action through my client player

I need help with this. I have coded in a simple double jump using a launch velocity call for each button imput. When the server does his jumps they work fine, but when I get down to it I cannot seem to get the client to jump. The clients simply spaz out on the floor and cannot jump at all.

I’m sorry I don’t have photos to show my error, I wish I did.

I just do not have a photo in order to do it