A magnifying glass zooming in on a computer screen displaying a wordpress error log

Understanding the WordPress Error Log

WordPress, as a robust content management system, is not immune to errors. However, it provides a handy tool known as the WordPress error log to help you diagnose and resolve these issues. This article aims to provide a comprehensive understanding of the WordPress error log, how to enable it, and how to interpret the data it provides.

What is the WordPress Error Log?

The WordPress error log is a debug tool that records all errors occurring on your WordPress site. It’s an invaluable resource when troubleshooting issues as it provides detailed information about the error, including where it occurred and potential causes.

By default, WordPress does not enable error logging. However, you can easily turn it on to monitor your site’s performance and resolve any issues that may arise.

Enabling the WordPress Error Log

Before you can start diagnosing errors, you need to enable the WordPress error log. This involves editing your site’s wp-config.php file, which is a crucial file for your WordPress installation. Therefore, it’s recommended to back up your site before making any changes.

Once you’ve backed up your site, access the wp-config.php file via an FTP client or your hosting provider’s file manager. Look for the line that says, “That’s all, stop editing! Happy blogging.” Above this line, add the following code:

define( 'WP_DEBUG', true );
define( 'WP_DEBUG_LOG', true );
define( 'WP_DEBUG_DISPLAY', false );

This code enables WordPress debugging, logs the errors, and prevents them from being displayed on your site. Save your changes and exit the file. WordPress will now start logging errors.

Interpreting the WordPress Error Log

Now that you’ve enabled the WordPress error log, it’s time to learn how to read it. The error log is located in the wp-content directory and is named debug.log.

Each line in the debug.log file represents a single error, with the date and time the error occurred, the nature of the error, and the file that caused the error. This information is crucial in diagnosing and fixing the issue.

Common Errors in WordPress

While the specific errors you encounter can vary, there are a few common ones that many WordPress users experience. These include the white screen of death, internal server error, and syntax or parsing errors.

The white screen of death and internal server error are often caused by a plugin or theme conflict, while syntax or parsing errors are typically due to a mistake in your code. The error log can help you pinpoint the exact cause.

Resolving Errors

Once you’ve identified the error, the next step is to resolve it. This can involve deactivating plugins or themes, correcting code mistakes, or increasing your site’s memory limit.

Remember to take a systematic approach to troubleshooting. Make one change at a time and check if the error persists. This will help you identify the exact cause and avoid unnecessary changes.


The WordPress error log is a powerful tool for maintaining the health and performance of your WordPress site. By understanding how to enable and interpret the error log, you can quickly diagnose and resolve any issues that arise.

While it may seem daunting at first, with practice, you’ll become adept at using the WordPress error log to keep your site running smoothly. Happy troubleshooting!

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