# Error Handling Reference

| Error | Cause | Solution |
|-------|-------|----------|
| Installation failed | Permissions or disk space | Run as admin, free disk space |
| Authentication failed | Browser or network issue | Clear cookies, try different auth method |
| License not found | Account not synced | Sign out and back in, verify subscription |
| API key invalid | Expired or wrong format | Regenerate key, check permissions |