Debug logging

To enable WordPress debug logging, edit the wp-config.php file, find the following line.

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define('WP_DEBUG', false);

define('WP_DEBUG', false);

Replace it with the code below.

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// Enable WP_DEBUG mode
define('WP_DEBUG', true);
 
// Enable Debug logging to the /wp-content/debug.log file
define('WP_DEBUG_LOG', true);
 
// Disable display of errors and warnings
define('WP_DEBUG_DISPLAY', false);
@ini_set('display_errors',0);

// Enable WP_DEBUG mode
define('WP_DEBUG', true);

// Enable Debug logging to the /wp-content/debug.log file
define('WP_DEBUG_LOG', true);

// Disable display of errors and warnings
define('WP_DEBUG_DISPLAY', false);
@ini_set('display_errors',0);

Perform the action that causes the error again, and the error message should appear in the file /wp-content/debug.log.

If the debug.log file does not appear

This usually means that PHP doesn’t have write access to the wp-content folder to create the file. Create a file name debug.log on your local computer and upload it to the wp-content folder via FTP. Once the file has uploaded, set the file permissions to 666.