Fixing Nginx 502 Bad Gateway in Docker WordPress Setups - How to Fix Git Push Rejected Non Fast Forward-Troubleshooting Git index.lock Permission Error

Updated 2026-07-28 15:39:23windows-fixes
Fixing Nginx 502 Bad Gateway in Docker WordPress Setups - How to Fix Git Push Rejected Non Fast Forward-Troubleshooting Git index.lock Permission Error
Before changing system settings, save your work and note the exact error text so you can compare results after each step.

Extra verification checklist

  • Restart the affected app after changing permissions or configuration files.
  • Test the same workflow in a clean browser profile or a temporary user account.
  • Compare the result on another network if the error may be connection related.