How to Fix the 500 Internal Server Error in WordPress & Elementor (2026)
What causes a 500 internal server error in WordPress The 500 internal server error in WordPress means the server hit a problem it could not explain. The four most common causes are a corrupted .htaccess file, an exhausted PHP memory limit, a plugin or theme conflict, and an outdated PHP version. Enabling debug logging first tells you which one applies. Step 1: enable WordPress debug logging Add the following to wp-config.php , then reload the page and open /wp-content/debug.log to see the real error: define( 'WP_DEBUG', true ); define( 'WP_DEBUG_LOG', true ); define( 'WP_DEBUG_DISPLAY', false ); Step 2: work through the four fixes in order Regenerate .htaccess — rename the file, then re-save Settings → Permalinks. Raise the PHP memory limit — add define('WP_MEMORY_LIMIT','512M'); (Elementor recommends 512M). Find the broken plugin — rename /wp-content/plugins , then re-enable one at a time. Update PHP — switch to PHP 8.1 or 8.2 in you...