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Troubleshoot and Fix a WordPress 500 Internal Server Error

Troubleshoot and Fix a WordPress 500 Internal Server Error

Troubleshoot and Fix a WordPress 500 Internal Server Error


If you are a website owner or a WordPress enthusiast, you might have encountered the frustrating “500 Internal Server Error” at some point. This error can be quite perplexing and disrupt the functionality of your website. However, fear not! In this article, we will explore the common causes behind this error and guide you through the steps to troubleshoot and fix it, ensuring your website is up and running smoothly again.

Table of Contents

  1. Understanding the WordPress 500 Internal Server Error
  2. Checking for Plugin Conflicts
  3. Examining Theme-related Issues
  4. Investigating Corrupt .htaccess File
  5. Server Resource Limitations
  6. Dealing with PHP Memory Limit
  7. Updating WordPress Core, Themes, and Plugins
  8. Verifying File Permissions
  9. Troubleshooting with Debugging Mode
  10. Contacting Hosting Support
  11. Backing Up Your Website
  12. Preventing Future Errors
  13. Conclusion
  14. FAQs

Understanding the WordPress 500 Internal Server Error

The “500 Internal Server Error” is a generic error message indicating that something unexpected has gone wrong on the server, but the server cannot pinpoint the exact issue. It is not specific to WordPress and can occur on any website.

Checking for Plugin Conflicts

Plugins play a crucial role in extending WordPress functionality. However, conflicts between plugins can lead to the 500 error. To identify the problematic plugin, deactivate all plugins and reactivate them one by one while checking for the error after each activation.

Examining Theme-related Issues

Incompatible or poorly coded themes can also trigger the 500 error. Temporarily switch to a default WordPress theme to determine if the issue lies with your current theme.

Investigating Corrupt .htaccess File

The .htaccess file controls server configuration, and a corrupt file can lead to server errors. Create a backup, then rename or delete the existing .htaccess file to see if it resolves the error.

Server Resource Limitations

Insufficient server resources, such as CPU or memory, can cause the 500 error. Check your server logs or contact your hosting provider to ensure your website has adequate resources.

Dealing with PHP Memory Limit

A low PHP memory limit can restrict script execution and trigger the error. Increase the PHP memory limit in the wp-config.php file or consult your hosting provider for assistance.

Updating WordPress Core, Themes, and Plugins

Outdated software can contain bugs and security vulnerabilities. Regularly update WordPress, themes, and plugins to prevent errors and enhance performance.

Verifying File Permissions

Incorrect file permissions can disrupt the server’s ability to read and execute files. Verify and set appropriate file permissions to troubleshoot the issue.

Troubleshooting with Debugging Mode

WordPress offers a debugging mode that provides valuable error information. Enable it in the wp-config.php file to identify the root cause of the 500 error.

Contacting Hosting Support

If all else fails, don’t hesitate to contact your hosting support. They have experienced technicians who can investigate and resolve complex server issues.

Backing Up Your Website

Before attempting any fixes, always back up your website to prevent data loss in case of unexpected outcomes.

Preventing Future Errors

Implement security measures, use reputable themes and plugins, and keep your WordPress installation updated to minimize the chances of encountering the 500 error in the future.


Experiencing a WordPress 500 Internal Server Error can be a daunting experience, but with the right troubleshooting steps, it is manageable. By identifying the root cause and following the solutions provided in this article, you can get your website back on track and running smoothly.

Need Professional Help?

Even though WordPress is a powerful CMS platform, it is not without its flaws and occasional bugs. We trust that the solutions provided in this article will be adequate to address your concerns and resolve any errors you may encounter.

However, if you still have any questions regarding the aforementioned WordPress errors or if you require expert assistance to fix any issues on your WordPress site, please feel free to reach out to us! We are here to help and provide the support you need. Don’t hesitate to contact us for a seamless and error-free WordPress experience.


Why did the 500 Internal Server Error occur?

The 500 error can be caused by various factors, such as plugin conflicts, theme issues, corrupt .htaccess files, or server resource limitations.

Can I fix the 500 error without technical knowledge?

Yes, many solutions mentioned in this article can be implemented without advanced technical knowledge. However, if you are uncertain, it's best to seek assistance from your hosting support.

Will disabling plugins affect my website's functionality?

Temporarily disabling plugins may affect certain functionalities, but it's a necessary step to identify the problematic plugin causing the error.

How often should I update WordPress, themes, and plugins?

Regular updates are essential for security and performance. Aim to update them as soon as new versions are released.

Is the 500 error a result of a hacker attack?

While the 500 error itself might not be a direct result of a hacker attack, outdated software can make your website vulnerable to security breaches. Keeping everything up to date minimizes the risk of such attacks.

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