They are trying their best to fix it as soon as possible.
It's the Christmas week, lot of them might have been on vacation, be patient and give them some time.
And releasing full updates takes time, it's takes some days for the update to land on app stores after they release it from their end.
Rest assured, they are surely investigating about the crashes, nobody would like to lose their players.
If you haven't created a ticket yet, make sure to create one and tell them about your device so it helps them in investigating.
Meanwhile, you can try the desktop version of the game, or simply take a short break and spend some time with your loved ones this holiday 🙂