I can only move foward if I press easy turn and forward handles

I have a two-stage snowblower and it can only move forward if I press the forward handle simultaneously with the easy turn handle right underneath it. Once I stop pressing both of them, I hear a “cling” sound like a spring and the machine stops as should. When I only press the forward handle it doesn’t move. The snowblower was working fine until I played a little with the speed, but soon after this has happened

Edit:

Maker: white outdoor

Model #: 31CM53K2509