Thanks for the screenshot @Yuki.O ! I’ve faced few crashing issues with some components like Eugenio mentioned and in recent months when sizes (see here : Crash when using “Current Message” component inside Custom List after enabling new React Native version - #6 by Dilon) has been 0 where changing to 1 fixes which probably might came along with the new react native version. Check those carefully (hidden components too like inputs, countdowns, etc.. ) and let us know, thank you and have a great day! (If you could share the crash log from Google in a DM, that might help to identify the issue)
Edit : After you sent me the crash log from Google Play Console in a DM, what I can see is there should be a component (like a text component, input component,..) with the font size 0 in the screen and changing to 1 should fix and if not, please let here know