Started mowing this evening and got about 25 feet and the mower shut off. No sputter, no noise, no smoke, just shut off like I turned the key off. Would not re-start after that. Had battery tested and it's good. When I turn the key, I hear the small click, which I think I've read is the starter selanoid? No kind of noise after that. Any ideas? Starter? It's a 2019 with 65 hours on it.