How to Fix Error Code: LS-0013 in Epic Games Launcher?

The “LS-0013” error in Epic Games Launcher typically occurs when the launcher fails to properly execute the startup process required to run a game. When this happens, the affected title won’t open, preventing you from playing any game linked to your Epic Games account.

The most common causes include a game process still running in the background, corrupted launcher or game cache, missing administrator privileges, or issues with the storage drive.

Before applying any fixes, make sure both your Epic Games Launcher and the affected game are fully updated, as outdated versions can also trigger this error.

Now that you know the main causes, let’s go through the verified solutions below.

1. End Task for Game and Epic Games Launcher

If the game or launcher is still running in the background, the system may block a new launch attempt. Ending those processes ensures a clean restart.

1. Click the system icon tray, right-click on Epic Games Launcher, and select Exit.
   
2. Press Ctrl + Shift + Esc to open Task Manager and End Task for any remaining Epic Games or game-related processes.
   
3. Relaunch the game and check if it opens correctly.
   

2. Rename or Delete the webcache_4430 Folder

A corrupted cache can often prevent the launcher from initializing games. The webcache_4430 folder stores temporary data for Epic Games Launcher. Renaming or deleting it forces the program to rebuild new cache files.

1. Press Win + R, type %localappdata%, and hit Enter.
   
2. Open the folder EpicGamesLauncher > Saved and rename the webcache_4430 folder.
   
3. Restart the launcher and test your game.
4. If the issue persists, delete the folder entirely and relaunch the game.

3. Run the Program as Administrator and Clear Cache

When the game or launcher doesn’t have the required permissions, it can’t access certain files or network components. Running them with administrator privileges and clearing old cache files helps restore normal startup behavior.

1. Go to your game’s installation path and open Properties by right-clicking the executable file:

   C:\Program Files\Epic Games\[Game Name]\Binaries\Win64

   

2. Under the Compatibility tab, check Run this program as an administrator.
   
3. Navigate to Binaries > TAGame and delete the Cache folder.
   
4. Relaunch the game to verify whether the issue is fixed.

4. Reinstall the Game on Another Drive

If your current storage drive is failing or has bad sectors, the launcher might not be able to read certain files. Reinstalling both the game and the launcher on a different drive ensures clean, error-free data.

1. Open the Epic Games Launcher.
2. Go to the Library tab.
   
3. Find Rocket League (or your affected game) and click the three dots icon.
   
4. Select Uninstall.
   
5. Click Uninstall again when prompted.
   
6. Press Win + R, type appwiz.cpl, and press Enter.
   
7. Uninstall the Epic Games Launcher.
   
8. Go to Epic Games Download and click Download to get the installer.
   
9. Install the launcher on a different drive.
10. After signing in, reinstall your game to the new location.
    
11. Once done, launch the game to confirm that the LS-0013 error no longer appears.