The E08E error is a Motor Drive Fault and one of the most common reasons for this fault is that the machines batteries are not seated properly or one of the batteries might be defective. Remove the two batteries from the machine and to then reattach them. If you find you are still getting the error then we would suggest swapping the two battery positions, front to back and back to front. If the error then goes away then you know the front battery is most likely the issue.
(they then continued to say that if it persists, to take it to my dealer for a warranty repair)