WordPress powers over 43% of all websites online, leading to a comprehensive list of errors. This hub pageIn WordPress, a page is a content type that is used to create non-dynamic pages on a website. Pages are typica… More details 50+ common WordPress errors — from minor typos to serious 5xx server failures — categorized by type, severity, and urgency for quick fixes. Each error links to a specific step-by-step repair guide.
How to Use This Guide
Contents
Use the diagnostic flowchart below to identify your error type, then proceed to the relevant section or click through to a dedicated fix guide. Each error is rated by severity and urgency to prioritize your actions.
Quick-Diagnosis Flowchart
5xx Server Errors — High Severity
5xx errors indicate server-side issues. They are the most urgent as they usually render your site inaccessible to all visitors.
| Error | Full Name | Severity | Urgency | Fix Guide |
|---|---|---|---|---|
| 500 | Internal Server Error | 🔴 Critical | Immediate | Fix the 500 Error |
| 501 | Not Implemented | 🟠 High | Same day | Check server configuration / hosting provider |
| 502 | Bad Gateway | 🔴 Critical | Immediate | Check hosting provider status / restart PHP-FPM |
| 503 | Service Unavailable | 🔴 Critical | Immediate | Fix the 503 Error |
| 504 | Gateway Timeout | 🟠 High | Same day | Increase PHP timeout / check server load |
| 508 | Resource Limit Reached | 🟠 High | Same day | Upgrade hosting plan or optimize resource usage |
4xx Client Errors — Medium to High Severity
4xx errors typically indicate a problem with the request — a missing page, permissions issue, or oversized file. They are less severe than 5xx errors but still affect user experience and SEO.
