This error is almost always caused by issues related to how the emulator validates its license—often due to using a "cracked" or free version that fails to check in with the official license server, or problems with Android's system permissions [1, 2].
Even if Kirikiroid2 itself runs without license issues, many commercial games require to work properly. As the official documentation notes, "Most commercial games use custom extension plugins, and most of those cannot play under Kirikiroid2". kirikiroid2 license fail
Downloading modified, cracked, or free versions of Kirikiroid2 from third-party websites instead of buying it legally. This error is almost always caused by issues
Back up your game save files (usually located in your device's internal storage directory under the game folders). Uninstall Kirikiroid2. : If you are using the Chinese build
: If you are using the Chinese build of Kirikiroid2, it may require your system language to be set to Chinese to function correctly. Troubleshooting for Newer Android Versions
: According to search results, after using Lucky Patcher, simply launch Kirikiroid2, confirm the license (which won't actually be checked), then navigate to your game folder and click on the data.xp3 file.
To help narrow down the best solution for your setup, let me know: