Software troubleshooting desk

Practical fixes for tool errors, setup blocks, and workflow issues.

Symptom

Cause

Fix route

Verify

Fresh repair notes

All notes

Fixing NGINX Upstream Connection Refused SSL Errors

When NGINX logs upstream connection refused for an SSL backend, it usually means the...

Fix Node.js Heap Out of Memory Error in PM2

If you're running a Node.js application under PM2 and seeing FATAL ERROR: CALL_AND_RETR...

How to Fix the Git index.lock File Exists Error
You're in the middle of a Git operation—commit, merge, or rebase—and Git stops with: fa...

How to Fix Chrome Startup Crash by Disabling Extensions
If Chrome crashes as soon as you open it, a misbehaving extension is often the culprit. Extension...

Fix VSCode Source Control Not Detecting Changes
You're working in Visual Studio Code, you edit a file, but the Source Control view shows no c...

Nginx Upstream Connection Refused: Diagnosis and Fixes
When Nginx returns a 502 Bad Gateway or logs "upstream connection refused", it means Ngin...


    Issue queue
Sitemap
Docker Network Not Found: How to Fix
Docker Volume Access Denied Troubleshooting
Chrome Safe Mode for Startup Crashes
VS Code chmod Permission Denied Fix
Troubleshooting Cloudflare 522 Timeout After Migration
How to Fix Node Version Incompatibility with npm Packages
Nginx 502 Error Docker Alpine Troubleshooting
Fixing Nginx Permission Denied for Root Directory
How to Fix Wildcard Subdomain Overlap with Root Domain on Cloudflare
How to Fix Windows Update Error 0x80070002
Cloudflare SSL Full Strict Origin Server Troubleshooting
Setting Up Cloudflare Wildcard Subdomains for Multiple Sites
Desk note

    Troubleshooting paths
Home
Windows FixesmacOS HelpBrowser IssuesOffice ToolsDeveloper ToolsCloud SoftwareSecurity ToolsBackup RecoveryNetwork ToolsDatabase ToolsAI ToolsProductivity AppsCLI ErrorsDocker KubernetesEmail ClientsFile Utilities