E6 on the GOTRAX scooters (G5, G6) means “Locked rotor.” Most likely cause: a wheel is jammed or dragging, or the motor is overloaded. Try this first: check the wheels turn freely.
The motor tried to turn but couldn't, so the scooter cut power to protect it. Check the wheels first. If nothing is jamming them, have the motor checked.
Step-by-step checklist
Work from the top. Steps go from free and easy to shop jobs. Switch the scooter off before touching any connector. Tick each step as you go. Your progress is saved on this device.
When it's time for a shop: if you've worked through every step and the problem is still there, contact the brand's support or an authorized service center. Bring your notes on when it happens, plus the code.