Masters of the Book,

Due to a previously announced issue related to a “Security Module Execution” error discovered after the 03/13 Update, an update for Android/iOS devices will be issued to resolve the issue. (Updated on 03/17 03:05 AM UTC / 08:05 PM PDT)

In addition, as of 03/17 10:00 AM UTC / 03:00 AM PDT, the issue has been resolved for Masters of the Book accessing the PC versions of the game. (Updated on 03/17 10:00 AM UTC / 03:00 AM PDT)

For users who are still encountering this issue, we kindly ask these users to update their game to the latest version to ensure that the fix is applied to your device. 

For more information regarding this issue and the fix provided, please check the information below:

■ Login Issue Fix Notice
* Date:
　- March 14, 2025 2025 01:43 PM (UTC)
　- March 14, 2025 2025 06:43 AM (PDT)
* Patch Details: A fix for login issues related to the “Security Module Execution” error.
* App Version:
　- Google Play Games Link
　- Google Play Store Link 
　- Apple App Store Link (Updated on 03/17 03:05 AM UTC / 08:05 PM PDT)

　- Windows Standalone Launcher Link (Updated on 03/17 10:00 AM UTC / 03:00 AM PDT)

※ If the “Update” button is not visible, please try refreshing your update list by scrolling or restarting your device.

■ Notes
* If your game is not updated, content that requires other players (Co-op, Arena) may be problematic. Please make sure to restart the game to download the patch before engaging in these contents.

Thank You