My 3D hitbox is not working

In a 3D game I am making, a desk object does not have a hitbox. I am not sure why it is happening, and if it helps I had to scale the object up a lot because it was tiny. Any solutions?

What are you doing to get it to check for the hitbox

Well, my character can walk right through it

If you add the 3d jump behavior then you go it the code and put in a seperate it should show up and that should fix it