A. This issue may be related to your internet connection. Check your Wi-Fi or cellular data connection to ensure it is stable. You can also try toggling Airplane mode on and off to reset your connection.
B. If the connection is stable, try clearing the app's cache. Go to Settings > General > iPhone Storage, find Club Cooee, and select 'Offload App'. This will free up storage without deleting your data, and then reinstall the app.