Please ensure your game has been updated to 40.11.0 version. If you have already completed the update and continue to encounter similar problems, you can try the following methods:

1. Close all background applications except MARVEL SNAP.
2. Try other network connections.
3. Restart your device.
4. If you still cannot play the game after a device restart and securing a stable connection, clear the game cache, then uninstall and reinstall the app.