# Error Handling Reference

| Error | Cause | Solution |
|-------|-------|----------|
| Authentication failed | Session expired or credential issue | Sign out, clear cache, sign back in |
| No completions | Feature disabled or rate limit | Check settings and subscription status |
| Indexing failed | Disk space or permissions | Free disk space, check file permissions |
| High CPU/memory | Extension or large workspace | Disable extensions, add exclusions |