Topic: Miraculous: Rise of the Sphinx how to restart after completion

First post, searched prior to posting, thank you in advance.

Completed Miraculous: Rise of the Sphinx with my daughter for the second time, this time in 2 player co-operative mode. I belive that when she was prompted to restart the game she chose no. So we're stuck in a perpetual end game status which reads something like "congratulations ladybug and cat noir". Not sure where to go to restart the game while preserving current unlocked items and status.