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Fix Git 'index.lock file exists' Error - How to Fix Git SSL Certificate Problem: Unable to Get Local Issuer-Fix Cloudflare Error 521 After a Server Update

2026-07-28 04:42:38
Fix Git 'index.lock file exists' Error - How to Fix Git SSL Certificate Problem: Unable to Get Local Issuer-Fix Cloudflare Error 521 After a Server Update

Result check

  • Keep one change per test run so you know which step helped.
  • Undo temporary changes after the issue is confirmed.