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Common problems and error messages

How to diagnose and resolve the four most common categories of problems: downloads, installation, launching and status.

TroubleshootingLegacy and EnhancedLast updated October 7, 2026

1. Download problems

  • Download failed: check your connection and click Retry; the client continues from where it stopped. If it keeps failing, switch networks.
  • Verification failed: the file was damaged in transit. Delete the task and download it again.
  • Download busy: wait for the current task to finish, or restart the client to release the task.

2. Installation problems

  • Missing required components: install what the client lists and try again.
  • The game environment must be installed first: install the environment for the matching edition.
  • A file is owned by another Mod: uninstall or disable the Mod that owns it and try again.
  • Reinstall required: files in the game folder are incomplete. Run the installation again; files that were already downloaded are reused.

3. Launch and game problems

  • The Mod has no effect after launching: make sure its status is Enabled and that the installed edition matches the game you launched.
  • The game will not start: uninstall the most recently installed Mod first, confirm the game starts normally, then install Mods again one by one.
  • Do not launch the game during an installation, or the installation is stopped and has to be run again.

4. Status and records

  • A Mod shows Reinstall required: files in the game folder were moved or deleted. Running the installation again restores it.
  • The list does not match reality: switch to another page and back, or focus the client window again, to trigger a status refresh.
  • Leftovers after uninstalling: uninstall the Mod once more in Mod Management, or send us the log through the help center so we can investigate.

5. When you report a problem, please include

  • The client version (shown on the About page).
  • The game edition (Legacy or Enhanced).
  • The Mod name and the steps that led to the problem.
  • Any error code the client displayed.