Yeah try charge the battery. Mine kept going flat every week so i had to recharge it, rear red light was dim too, not the brake light just the normal rear red light, headlight was dim, turn out to be my regulator. Maybe just a flat battery on your tho ao a charge may fix it.
I ran jump leads off my car battery to the scoot and it fired up just fine so i knew it wasnt the starter etc and had to be a battery/charging issue after that.