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Fix Nginx Upstream Connection Refused Socket Error - How to Fix the Git index.lock File Exists Error-Nginx 502 Bad Gateway in Docker: How to Fix

Updated 2026-07-28 16:40:31browser-issues

Fix Nginx Upstream Connection Refused Socket Error - How to Fix the Git index.lock File Exists Error-Nginx 502 Bad Gateway in Docker: How to Fix

Likely symptom

Likely cause

Safe rollback

Verification route

Repeat the original action, not only a simplified test case.
Restart the app or reload the service after configuration changes.