[HELP] Can someone explain this error to me? I read the README and still don't get it.

Look, if you had spent five minutes searching the forum instead of posting a vague question about an obvious issue, you wouldn't be here. The answer is in the docs

This is probably one of those "the README says X, but actually Y" situations where the documentation has diverged from the current codebase. Let me try to break it down based on what I've seen with this error before:

The core issue is that your worker process can't acquire a lock because another job already holds it — which sounds trivial until you realize those jobs might be zombies or hanging connections. The error message isn't telling you who has the lock, only that someone does.

Here's what I usually do to debug this:

1. Check ps aux | grep worker and see if there are any orphaned processes from previous runs
2. Look at your Redis/DB connection pool — sometimes it's a leaked connection keeping the lock alive
3. Temporarily lower the lock timeout in config so stale locks release faster (use this as debugging, not as a permanent fix)

The root cause is almost always that a job crashed without