We're sorry to hear you're experiencing this issue. It is recommended that you close other inactive programs or switch to a more stable network when playing the game. You may follow these steps as a fix if you already have your account linked.
 
1. Clear the game cache.
2. Uninstall the MARVEL SNAP app.
3. Reinstall the MARVEL SNAP app.
4. Log in using your linked account.
 
If you encounter this problem repeatedly even after taking these actions, please contact customer service, and we will assist you as soon as possible.