Walk Behind Lawn Mowers

Recently I purchased a new Husqvarna AWD walk-behind mower. The mower is equipped with dual drive control levers. I used the mower the mower 5 or 6 times with no issues, but yesterday when I was using the mower, the right-side lever began to feel loose and after approximately 20 minutes stopped working completely. Now when the right side control lever is depressed it goes straight to the control handle with no resistance and the drive wheels do not engage/turn.

How do I repair the malfunction?