# Common Issues/Errors

- [Error Codes](/sinister/common-issues-errors/error-codes.md): This page will help you fix a specific error code when attempting to launch a tool.
- [Key Not Found](/sinister/common-issues-errors/key-not-found.md): This page is for when a loader says "Key Not Found" when entering a key
- [Connection Error](/sinister/common-issues-errors/connection-error.md): This page is for when a server connection error occurs when trying to load a tool.
- [Loader Crash](/sinister/common-issues-errors/loader-crash.md): This page tells you what to do if the loader crashes (not the game).
- [Blue Screen Of Death](/sinister/common-issues-errors/blue-screen-of-death.md): This page explains how to fix your BSOD issues.
