# WordPress White Screen / HTTP 500 – Fix Step by Step

Website shows white screen or HTTP 500/503? PHP errors, plugin conflict, .htaccess, memory limit – webspace troubleshooting.

**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

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

More codes: [HTTP status codes explained](/en/webspace/http-status-codes)

## Related

- [Set up webspace](/en/webspace/set-up)
- [Fix SSL errors](/en/domain/ssl-fehler-beheben)