1. Contact the organizer of the contest: If you find that you have chosen the wrong track, you should immediately contact the organizer of the contest, explain the situation to the organizer and ask for help to correct it.

2. Submissions of works: After contacting the organizer of the contest, you need to resubmit the works. Before resubmitting the work, you need to read the rules and requirements of the new track carefully to ensure that the work meets the new standards.

3. Pay attention to the time node: In the process of modifying the track, pay attention to the time node to ensure that the modification can be completed and the works can be submitted within the specified time. Because of the track modification, the works can't be submitted on time, which affects the competition results.