This typically means that a file has been blocked or quarantined by Windows Security or Anti-virus software upon installation as a false positive read. Please check your Windows Security> Virus Protection > Protection History to check if any files from TwelveSky2 Folder. This also usually means that if it deleted you may have to re-install the game client We also recommend checking out other p[possible troubleshooting related issues on this users guide; https://forums.playredfox.com/index.php?threads/updated-10-23-2021-extended-basic-guide.53026/page-2