WordPress White Screen / HTTP 500 – Fix Step by Step

Quick answer: White screen or HTTP 500 = almost always a PHP error or plugin conflict. Read error log, disable plugins, increase PHP memory limit.

If you landed here: Your site shows nothing (WSOD), HTTP 500/503 or "Internal Server Error".

5-minute checklist

1. Read error log in Plesk → Logs → Error Log
2. Disable plugins – rename wp-content/plugins to plugins_off
3. Test theme – activate default theme via FTP
4. Rename .htaccess → test site
5. Increase PHP memory_limit to 256M in Plesk

More codes: HTTP status codes explained

Related

• Set up webspace
• Fix SSL errors