The issue with the game has been fixed and players can now download it again via the app store or the game's home screen. Following the original article is the synopsis.
If you wanted to explore everything Chapter 4 has to offer, you'll have to wait a little bit longer. The issue has been confirmed and the company is currently working on a fix.
There is an error that reads "LIBRARY- IN-NOSIGNATURES" when you try to update the game on your phone. It's possible that this has something to do with the game being installed outside of the Play Store, but don't worry, it will be fixed soon. The company confirmed it on the social networking site.
Early Sunday morning, players were able to check out the brand new island and all the new features that were added to the game. There are a lot of new skins, including Geralt of Rivia from The Witcher games and shows. New vehicles have also been added to the game as the game continues to evolve over the course of the next year.