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Browse Common Issues

Let’s get the common issues out of the way.

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401 Unauthorized

The 401 Unauthorized status tells the browser that the request lacks valid...

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403 Forbidden

A 403 Forbidden error means the web server refuses to serve the...

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404 Not Found

WordPress returns a 404 Not Found error when it fails to locate...

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502 Bad Gateway

A 502 Bad Gateway error occurs when one server on the internet...

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502 error when manually clearing the cache

When WP Rocket initiates a cache purge, the request passes through the...

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503 Service Unavailable

The 503 Service Unavailable error is a temporary server side response. It...

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Action Scheduler failed to schedule Used CSS jobs

The Action Scheduler tries to queue a background task that generates the...

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Allowed memory size exhausted

WordPress triggers a fatal error when a PHP script tries to use...

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Allowed memory size exhausted during cache rebuild

This error occurs when WordPress or a caching plugin attempts to rebuild...

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Browse All Issues >

WordPress News

Not hourly not even daily just when it’s needed.

3 min read

Headless WordPress in 2026: Why the Architecture Shift Is Accelerating

What is headless WordPress? Headless WordPress separates the content‑management back‑end from the...

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4 min read

WordPress 6.9 “Gene”: 7 Must‑Know Features for 2025 Developers

Why WordPress 6.9 matters right now Early December 2025 saw the official...

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