Board Thread:Questions and Answers/@comment-37068540-20181001104005/@comment-25669516-20181001163013

As far as the (rather long) title of the message is concerned, yes it is a known problem. The only solution is to close and restart the game every few matches to make sure you have sufficient RAM.

As for replaying the missions on your current profile is concerned, an Eclipse mode like SF2 has been suggested to Nekki several times. They've said they'll consider it but there is no telling when (if!) they will add it in.

If you want to start fresh completely from level 1, just clear the data of the app and use another Google ID to sign into the game. You can also use an app like Parallel Space or clone the game if your device has that feature in-built. Male sure your original profile is synced with Google Play Games before attempting this to avoid data loss.