As of today, the airline will stop all operations.
The company had to file for bankruptcy. Aigle Azur suggests to contact other airlines to book a new flight, maybe for a preferred fare which seems not really feasible.
If something like this happens you are always lucky if you booked your ticket with a credit card offering some king of insurance.
Aigle Azur had some very interesting business class fare to South America for example in the past.
Sources: https://www.aigle-azur.com/, https://www.diplomatie.gouv.fr/fr/conseils-aux-voyageurs/informations-pratiques/article/aigle-azur-annulation-de-vols-242181