Will not charge, run, nor turn off - 2 blue lights on each side of white lights

Went to use my robot for only the 4th time, now it does nothing except white + blue lights.

Regardless of switch position (off, middle, far right) & whether plugged in or not. Plugging in charger also had no effect, although the light on the charger itself changes from green to red.

Any help or thoughts?