LunaTheKittybat Sounds like it is fully charged.
It’s really common for the brake sensor switch (part of the brake lever) which tells the scooter you are braking to get stuck down.
This cuts off the motor and people will think the scooter is dead. You might try messing with this and see if it will start running again. Sometimes you can easily disconnect the wire that goes to the brake lever to test this.
One thing you did say was that the scooter turned off – did the display also go off? If the display turned off then it’s probably not a brake sensor issue.