Original sentence: A major error occurred by race officials when she was asked to wave the flag early (at the end of lap 69 instead of lap 70), before all racing laps had been completed.Her error did not seriously impact the race result (although 13th- and 14th-placed drivers were switched), but it resulted in extra risks of injury taken by drivers and marshals around the track, as the race leader Sebastian Vettel as well as other drivers maintained racing speed after the chequered flag was shown, during what was considered by the track marshals and other personnel to be the slow-down lap when they traditionally emerge on track from behind safety barriers
Edited sentence: Her massive error did not seriously impact the race result (although 13th- and 14th-placed drivers were switched), but it resulted in extra risks of injury taken by drivers and marshals around the track, as the race leader Sebastian Vettel as well as other drivers maintained racing speed after the chequered flag was shown, during what was considered by the track marshals and other personnel to be the slow-down lap when they traditionally emerge on track from behind safety barriers.However she committed a major error by waving the flag early (at the end of lap 69 instead of lap 70), before all racing laps had been completed