App always crashes

Hi,
I am fairly new to Hearthstone and would like to play the game on my iPhone 11.
After installation, I was also able to successfully complete the first training mission.

Now when I start the game again and want to start the second mission, the app directly crashes.

I have a video of this problem but can’t share it here.

Best regards,
Alienuser

Thanks. This is the video then!
https://streamable.com/ctubx4

One additional info. I’ve I’m reinstalling the app and not logging in, I can play all demo matches. When I’m switching then the account, I have the same issue.