The economy of Germany crippled because it lost the battle in World War I.
Its economy slowed down as it was asked to pay heavy restitution charges and accept the accountability of initializing war against allied forces. This payment of huge money inhibited Germany to economically grow and sustain.
The authoritative supremacy of the allied forces enraged Germany that it became vulnerable to support the radical views of Nazis. Germany was also forced to be held accountable for the massive destruction of war