The message “An illegal program has been detected. (E0191019)” appears when the system detects an application that may attempt to tamper with game data.
If your smartphone is rooted, there may be unauthorized apps (such as cheat tools or hacking software) running without your knowledge.
In this case, we recommend removing any root-related apps and unrooting your device before launching the game again.
Additionally, some PC emulators (such as LDPlayer) may have root access enabled by default in their general settings.
Please check this setting and disable root access before relaunching the game.