Written by Admin on 2025-05-06

How to Fix the 'WordPress call to a member function get on null query.php' Error

If you are a WordPress user, you may have encountered a frustrating error message that says "WordPress call to a member function get on null query.php". This error can be caused by a number of issues, but fortunately, there are a few steps you can take to fix it.

Understanding the Error

Before we get into the steps to fix the error, let's first understand what it means. Essentially, this error message is telling you that there is a problem with the way WordPress is trying to fetch data from the database. Specifically, it means that there is no data being returned by the database query that WordPress is trying to execute.

Steps to Fix the Error

Now that we know what the error means, let's take a look at some of the steps you can take to fix it.

Step 1: Check for Plugin or Theme Conflicts

One of the most common causes of the "WordPress call to a member function get on null query.php" error is a conflict with a plugin or theme. To check for conflicts, try disabling all of your plugins and switching to a default WordPress theme, such as Twenty Twenty. If the error goes away, you can then re-enable your plugins and switch back to your previous theme one by one until you identify the culprit.

Step 2: Increase PHP Memory Limit

Another possible cause of the error is a PHP memory limit that is too low. To fix this, you can try increasing the memory limit by adding the following code to your wp-config.php file:

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

This will increase the PHP memory limit to 256MB, but you can adjust the number as needed.

Step 3: Repair the wp_posts Table

If neither of the above steps work, you may need to repair the wpposts table in your WordPress database. To do this, you can use a tool called phpMyAdmin. Simply navigate to your site's database using phpMyAdmin, select the wpposts table, and then choose "Repair table" from the dropdown menu.

Conclusion

The "WordPress call to a member function get on null query.php" error can be frustrating, but it is usually fixable by following the steps outlined above. If you are still experiencing issues after trying these steps, you may need to reach out to a developer for further assistance.