Hi Stumbler! We have some news to share with you!! 
As we work to improve Stumble Guys for everyone we are putting an end to an era of some older versions of the game. The main reason for this is that we want to remain compliant with specific laws / regulations and also to improve our app security so we can provide an even better experience for everyone.
Out with the old in with the new! Starting February 12th, anyone who has not updated the game to 0.55.1 or higher please do so now! If not, then you will not be able to experience all the cool fun things we have planned for the game! Please remember to save your progress with Email (ScopelyID), Facebook, Google Play or Game Center to ensure your progress is retained.

Click here for Google, here for Apple here for Steam or here for Xbox if you need to update Stumble Guys now!  

Thank you for the understanding and stay awesome!