Repair of a ship in the Old Town

This work is done for a challenge on Render.ru https://render.ru/ru/gallery/artwork/185052 . This story happened in the Old City. A team of excellent racers from the Helio people were well on their way to their goal. And everything was fine until the engine started to smoke. Unfortunately, something happened to the ship. Will our brave team be able to identify the problem and pass this test?)