Troubleshooting
Invalid Token / Bot Not Responding: Full Fix Guide (2026)
Practical fixes for 401/403/429 issues, intent misconfiguration, and invitation permission mistakes.
July 2, 2026
TL;DR
Invalid token errors usually come from bad copy/paste, leaked token resets, wrong auth header format, or intent mismatch. Most “bot is offline” incidents are configuration and permission issues.
Most Common Causes
1) Token copied with extra spaces. 2) Token exposed publicly and auto revoked. 3) Missing privileged intents. 4) Bot invited without required permissions. 5) Rate-limit handling missing.
Recovery Steps
- Regenerate token if leaked, rotate immediately.
- Enable required intents in Developer Portal and app config.
- Reinvite bot with full required permission set.
- Implement exponential backoff for 429 handling.
Need Stable Bot Operations?
Use RestoreMem for a more stable recovery workflow and fewer high-impact setup mistakes during production incidents.