Those 4 flashes stopping, then repeating, means the throttle twistgrip is not closing off completely. Your bike won't run after switching on unless the throttle is fully closed, this for safety reasons of course.
Therefore make sure your throttle is fully twisted closed and try again. Let me know the result, and if the spring action is returning the throttle to fully closed ok.
An ordinary bike shop can realign the back wheel is it's out of line and rubbing one side for some reason. Most won't be able to correct electrical faults though, but we don't know for certain yet that there is an electrical fault.
Therefore make sure your throttle is fully twisted closed and try again. Let me know the result, and if the spring action is returning the throttle to fully closed ok.
An ordinary bike shop can realign the back wheel is it's out of line and rubbing one side for some reason. Most won't be able to correct electrical faults though, but we don't know for certain yet that there is an electrical fault.