Hello, this is WalkMining Team.
We are continuously improving the APP's usability.
Also, strengthening restrictions against abusers through continuous monitoring.
As a result, the use of the Reward Shop will be restricted for older versions of the APP.Please use it after updating the app version to the latest version.
The restricted version:
Android: 0.3.2 or lower
iOS: 0.3.5 or earlier