We have not encountered instances where Ailuna has actually frozen, only that is has appeared frozen. This has been due to the user's general iPhone zoom / magnification settings. By the time you read this, this has probably already been fixed, but as a workaround, try to reset your zoom level to 100%, get Ailuna going, and then set it back to what you wanted it to be.
See this link:
How to adjust Display Zoom on iPhone and iPad
  1. Open Settings.
  2. Scroll down to Display & Brightness.
  3. Under Display Zoom, tap View. You’ll now have the option to choose between Standard and Zoomed.