List of League of Legends error codes: How to fix all errors and what they mean

League of Legends Light enough to run on today’s oldest consoles. This allows the game to reach millions of players, but it also means it comes with a reasonable error rate.

While almost every new patch fixes some known bugs, they also tend to introduce others. Partial troubleshooting may seem like a long and arduous task, but it’s not as bad as you might think.

While it sounds simple, we recommend restarting your PC and closing all running processes before trying any of the solutions listed below.

Here are some of the most common mistakes in League and how to fix them.

Error name Symptom Solution
Error code 0U Usually appears on PBE clients. Error code 0U causes client contents to display incorrectly and even shut down unexpectedly. Run Hextech Repair Tool and try launching the game afterwards. If it doesn’t work, try adding League as an exception Firewall and game replay. As a last resort, you can try reinstalling League via Hextech Repair Tool.
League of Legends Error code 004 The error usually occurs when the client fails to patch the game. Unable to download or install updates means that there is a connection problem or there is not enough disk space. Make sure your connection is solid and that you have enough space on it SSD or hard drive.
Error 7 This error indicates that Riot’s server is overloaded, causing players to disconnect. Since this is a server related issue, your best bet is to keep trying to log in. Stay tuned LeagueYour Twitter account is also beneficial.
League of Legendss Error 1B Error 1B is usually related to ISP problems. It prevents players from logging into the game. Although the problem is known to fix itself, you can try running League customers on management mode. If it doesn’t work, we recommend that you repair your client.
Error maintenance This bug mainly affects Linux users and prevents League customers from receiving updates. Repairing the client will fix this problem. If that doesn’t work, we recommend deleting RiotClientServices.old and ucrtbase.dll before continuing.
Unexpected error with login session This login session error tends to arise when another instance of League The client has difficulty running in the background. To fix the error, launch the task manager and end all tasks related to League. If it doesn’t fix the error, we recommend that you start repairing the client.
Error: 0xc0000005 While the reason behind the error is unknown, it prevents players from logging into the game by blocking their access to the client. The error is a Windows problem. Try running League client in admin mode. If it doesn’t fix the problem, reinstall it League after deleting all game related files.
A fatal error has occurred This fatal error is caused by other programs having overlay options during gameplay. It prevents players from logging in League. Close all programs with an overlay, like Steam, Origin, or Discord. Then determine your local location League folder to delete the configuration and data folders.
Unexpected login error This error usually appears when you have an unstable connection. It prevents players from downloading updates or logging into the game. We recommend doing a router reset and changing your DNS. If these don’t work, try contacting your ISP and let them know about your problem.
Direct x error is undefined This direct x error occurs during unstable graphics and prevents the player from launching League customer. Although the error message prompts players to update their graphics drivers, deleting the game.cfg file should fix the problem.
League of Legends Error code 002 Like error code 004, this also interrupts the patching process and prevents you from logging into the game. This is another memory related error. Make sure you have enough space on your data driver. If that’s not the problem, try disabling your anti-virus software.
The program cannot start because d3dx9_43.dll is missing on your computer. This error mainly occurs on new PCs and prevents players from starting the match. Complete all available Windows updates before launch League usually fix the problem. If this doesn’t work, we recommend installing the file manually via the DirectX End User Runtime Web Installer.

BugSplat and generic fixes League of Legends trouble

It’s annoying to be kicked out of the game due to the BugSplat bug. But you can find comfort in knowing that you are part of Leagueof development. Don’t hesitate to report these issues via pop-ups and help fix the problem.

Most BugSplat and general League no-name error occurs due to overheating, corrupted game files, hardware problems, or outdated drivers.

Update your graphics card driver

Outdated drivers are one of the main causes of unexplained crashes. New patches may also introduce undocumented changes that change the way League interact with your GPU. These changes may require driver updates if they rely heavily on GPU manufacturer upgrades.

Updating your graphics driver should only take 5 to 10 minutes because both NVIDIA and AMD guide the user through the process. Remember that you should download the right version for your GPU by going through the lists.

Turn off your anti-virus software

Anti-virus software has a history of detecting false positives in Leagueinstallation or update files prevent the client from launching. The main reason behind this is that most of the files installed to your PC are in a compressed format, making them harder to scan.

Disable or at least set an exception for League’s files will allow you to ignore any errors you get when trying to update your game.

Run LeagueClient and the game executable in admin mode

Restricted user rights or programs with administrative privileges can lead to problems League.

Run both League The game’s client and executable will ensure that the game gets all the resources it needs to run smoothly.

Riot has a history of downloading new versions of these two files with every patch, so you may need to repeat this process every time a new patch hits the servers.

Repair your client and use the Hextech Repair Tool

Fix your customer ensuring that there is nothing wrong with League files. It also repairs the corrupted files it encounters and downloads the missing ones.

While a client repair tool can get the job done, the Hextech Repair Tool will be very useful if you are experiencing frequent errors and errors.

Hextech Repair Tool can:

  • Make an easy reinstall or repair
  • Firewall Management
  • Show known issues in your area
  • Keep a log of your incident

These logs can be used by League support team to determine the source of your error. List of League of Legends error codes: How to fix all errors and what they mean


Hung is a Interreviewed U.S. News Reporter based in London. His focus is on U.S. politics and the environment. He has covered climate change extensively, as well as healthcare and crime. Hung joined Interreviewed in 2023 from the Daily Express and previously worked for Chemist and Druggist and the Jewish Chronicle. He is a graduate of Cambridge University. Languages: English. You can get in touch with me by emailing:

Related Articles

Back to top button