Why is my 2004 escape ventilation system only blowing through the defrost ducts? on 2004 Ford Escape

I turned on the a/c today and discovered that air only blows through the defrost vents. The center dash climate control know controls the dash vents, lower vents and combined dash and lower vents. But only the defrost vents seem open. In addition, the MAX air conditioning mode will not blow harder like normal

Asked by for the 2004 Ford Escape