Why is my Dyson multi floor ball not sucking when I cleaned it out

My Dyson Ball multi floor is not sucking I went through the entire thing did not find any clogs that I pull off the the catcher the round tube and clean the filters out of that clean the HEPA filter pulled the side of the ball often see anything cotton that filter went through all the tubing and didn’t find anything in there it turns on and the brushes flick but it’s not sucking from the front side sucking from the top side so it’s sucking out we’re supposed be blowing in