Please follow the instructions below to resolve this issue and restart the game client.
■ Error Code (3, 1061, 28206)
"We have detected that game files are missing or corrupted in the security system. Please replace them with the correct files or reinstall the client."
■ Troubleshooting
1) Access My PC → Local Disk (C:) → Program Files folder
2) [AntiCheatExpert] Right-click the folder, delete and then click [Run Game] again.