Knight Online Bug Report crash: Sorry. Unexpected error has occurred
What the Bug Report window means, common crash causes (laptop integrated GPU, DX11, drivers) with a step-by-step fix, and crashes without a report window.
Knight Online
Errors, accounts & bans
Knight Online error codes and fixes, OTP and account problems, ban lists and ban appeal guides.
Knight Online undefined error: can't create an account, invalid email and sign-up problems
Safe steps players say fix the undefined warning at sign-up, the 3-accounts-per-number ICS rule, email and username errors, and account creation on the Steam version.
Knight Online Invalid Data Tables error: Archive open failed, data tbl errors and patch problems
The game's file and patch error messages word for word with their meaning, repair steps for Invalid Data Tables, a network tip for Archive open failed and central directory errors, and a launcher stuck on Checking version.
Knight Online Runtime Error: Microsoft Visual C++, missing DLL and Sound Device Fail fixes
Causes of Runtime Error with a step-by-step fix, which Microsoft package to install for missing DLL errors, crashes the Steam version patched, and the Sound Device Fail error.
Knight Online XIGNCODE3 error: 0xE019100B, suspicious program detected and XIGNCODE not loading
What the XIGNCODE3 codes mean and NTTGame's official fix (delete xmag.xem, restart, ticket with logs), network steps when it won't load, virtual machines, AppSign/Security errors and mass-error days.
Knight Online error 10060: Failed logging into the Login Server and Login Server Connection Failed
10060 is the timeout you get when the game can't reach the login server. What the codes mean, how to tell an outage apart, NTTGame's DNS and reinstall advice, and the related login and disconnect messages.
Knight Online not starting or disconnected from server: error messages and official fixes
Knight Online not starting or disconnecting: what the login and in-game error messages mean, the official steps, maintenance times, DX11 settings and region messages when playing from abroad.
Knight Online OTP error: OTP is not active, TimeSync and can't join a new server
How to fix Knight Online OTP errors: what OTP is not active, TimeSync is required, Number is incorrect and unknown issue mean, plus the other messages you can get joining a new server.
Knight Online item lock and account security: sealing items, the VIP password and ICS/OTP
Knight Online account security guide: sealing items at the Inn Hostess and what a seal blocks, the seal and VIP Vault passwords, what to do if you forget them, [Security] Shield and Security Tokens, ICS/OTP and Sealed Items for bound gear.
Banned in Knight Online? How to check, appeal and what you lose
'Your account is currently blocked' at login means your account is closed. Learn the length and reason through an NTTGame support ticket; cheating bans have no amnesty and cash items aren't refunded. What each in-game penalty message means.
Knight Online ban wave on Zero: why high-value characters got banned
The September 23, 2026 USKO mass ban: 691 characters on 5 servers, led by Zero, were banned through the in-game notice. Lists by server, banned clans, GB prices and why.
Knight Online Felis ban list: 30 characters banned on September 23, 2026
An alphabetical list of the 30 characters seen banned on Felis in the September 23, 2026 ban wave through the in-game notice. Not an official list; the bans were for TBL and third-party programs.