UPDATE [2097491]
Some good news, time travelers! Our devs have implemented a patch today which addresses the following issue:

Crash that occurs in long battles upon acquiring a second Fever Star

The update should resolve this issue for some users. Thanks for your patience and help with this! If there are other problems, please continue using the forums to search for help or our PC form here[www.ideafintl.com] to give us feedback directly. 

Hope you enjoy playing!
-Orion