Huskee lt4200 riding lawn mower wont start because its stuck in gear

Huskee lt4200 riding lawn mower wont start because its stuck in gear

Huskee LT4200 briggs & stratton 16.5 hsp lawnmower. It wont start because it is stuck in gear. We kept working with it and finally got it unstuck. Mower started. When we went to put it in gear mower shut off. Now mower is still in gear and it doesnt start in gear. Has anyone else ever had this problem or anyone have any suggestions as to where i need to start at to try to fix this problem?