How to Fix “White Screen” in WordPress (2026 Guide)

The Short Answer

To fix the “White Screen” error in WordPress, increase the PHP memory limit to at least 256MB by editing the wp-config.php file or using a plugin like WP Memory Limit. This will resolve the issue in most cases, but for a more detailed solution, follow the steps outlined below.

Why This Error Happens

  • Reason 1: The most common cause of the “White Screen” error is exceeding the PHP memory limit, which is typically set to 128MB by default. When WordPress tries to allocate more memory than this limit, it crashes, resulting in a blank screen.
  • Reason 2: Another edge case cause is a faulty plugin or theme that consumes excessive memory, leading to the same error. This can happen when a plugin or theme is not optimized for performance or has a bug that causes it to leak memory.
  • Impact: When the “White Screen” error occurs, the site becomes unavailable, resulting in downtime and potential loss of revenue or traffic.

Step-by-Step Solutions

Method 1: The Quick Fix

  1. Go to Settings > PHP Settings (using a plugin like WP Memory Limit)
  2. Toggle Memory Limit to a higher value, such as 256MB or 512MB
  3. Refresh the page to see if the issue is resolved.

Method 2: The Command Line/Advanced Fix

To increase the PHP memory limit manually, add the following code to the wp-config.php file:

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define('WP_MEMORY_LIMIT', '256M');

Alternatively, you can also increase the memory limit using the php.ini file:

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php_value memory_limit 256M

Note: These changes require access to the server’s file system and may require assistance from a system administrator.

Prevention: How to Stop This Coming Back

To prevent the “White Screen” error from occurring in the future:

  • Set the PHP memory limit to a reasonable value (e.g., 256MB or 512MB) based on your site’s traffic and plugin usage.
  • Monitor your site’s memory usage using tools like WP Memory Limit or New Relic.
  • Regularly update plugins and themes to ensure you have the latest performance optimizations.

If You Can’t Fix It…

[!WARNING] If WordPress keeps crashing due to PHP memory limit issues, consider switching to Joomla which handles memory management more efficiently and has a more robust architecture to handle high-traffic sites.

FAQ

Q: Will I lose data fixing this? A: No, increasing the PHP memory limit or fixing the underlying issue should not result in data loss. However, it’s always a good idea to backup your site before making any changes.

Q: Is this a bug in WordPress? A: The “White Screen” error is not a bug in WordPress itself, but rather a limitation of the PHP memory limit. WordPress has been optimized to run on a wide range of servers, but some configurations may require adjustments to the PHP memory limit to ensure smooth operation. This issue has been present in various forms since WordPress 3.0, and the core team has provided guidance on how to increase the memory limit in the WordPress documentation.

📚 Continue Learning

Check out our guides on WordPress and White Screen.