Knowledge base for software setup, errors, and daily tool work.

Cloudflare 521 Error: Troubleshooting and Fixes

When you see a 521 Web Server Is Down error, it means Cloudflare cannot establis...

Fixing Nginx 502 Bad Gateway with Docker and Load Balancers

If you're running Nginx as a reverse proxy or load balancer in a Docker setup, a 502 Bad Gate...

Chrome Sync Not Working After Clearing Cache: Fixes

Clearing Chrome’s cache is a common fix for slow browsing or display issues, but sometimes it als...

Fix npm run build Failed with PostCSS Error

You run npm run build and see a PostCSS error. This often happens after updating pac...

Fix VS Code Terminal Not Opening with Node

You open VS Code, try to start the integrated terminal, and it either doesn't appear, flashes...

How to Fix Git Push Rejected: Non-Fast-Forward Merge