Tractor won't go

I’ve got this tractor, I drove it from one farm to the other, no problems, but now it won’t move. There’s gas in the tank, there’s charge in the battery. The engine has yellow-damage, not too bad. Enough wheels. Everything else is fine. I get in the seat, press ^, and receive the message that I’ve taken control of the vehicle. But the engine doesn’t start. I’ve tried it with and without cruise control. Nothing. Without cruise control, I’m told the engine isn’t on. I’ve tried turning the engine on from out of the seat. And flipping switches - plow on, plow off, nothing.