Lifan generator stopped generating during use
My 3000 watt lifan generator randomly stopped producing power while I was using it. I estimate I was using about 1000 watts. There was a ps4, computer with 300 watt psu at idle, 3 phones, 3 lights, and a 50 inch smart TV. I tried to flash it with 2 methods, starting it and plugging a 12 volt battery into the brushes, and plugging a battery into the ac power plug while it was running (not sure how bright of an idea that was, I found it online and people said it worked, I also matched positive with hot and negative with neutral). I need to know what could have possible went wrong.