Error type:PHP error

Error name:Pluggable.php file error

English name:Pluggable.php File Errors

Wrong description:A PHP error may be generated if a plugin or snippet fails to properly process the relevant functions of the Pluggable.php file.

How to Fix Pluggable.php File Errors in WordPress?

The Pluggable.php error is one of the more puzzling errors you may encounter in WordPress.

Most commonly, this happens when you open a theme or plugin, but you may also encounter pluggable.php errors whenever you try to add a code snippet.

Basically, the reason why the pluggable.php is wrong is that the new function may not be able to override the default WordPress function.

pluggable.php is one of WordPress’ core files, which means that there is other content (most likely plugins or code snippets) that conflict with the natural behavior of this file.

While mistakes are rare, when they do, they can have serious consequences. Pluggable.php errors can break your website, resulting in a white screen and inability to access the backend or frontend of your website.

In this article, I will explain to you how to fix this error.

What does the Pluggable.php file error look like?

Some WordPress core functionality can be overridden by users or plugins. These functions can be found in the pluggable.php file.

This error occurs if a plugin or fragment fails to handle one of the functions correctly:

How to Fix Pluggable.php File Errors in WordPress?

Manually troubleshoot Pluggable.php file errors

The pluggable.php file is a core WordPress file. When you have an error pointing to a WordPress core file, it is never a good idea to edit it in the first place.

The error most likely came from a different location.

To fix any pluggable.php file errors, look for the first reference to it in the error message.

In the above example, the error can be found in the theme’s functions.php file, line 103. Not in the pluggable.php file.

Your theme’s functions.php file needs to be edited and the code causing this error needs to be replaced or removed.

The extra space after the php ?> tag can cause the headers sent error. So just remove the extra space and in most cases the error will go away.

Note that this error can also come from plugins that conflict with the pluggable.php file.

How to Fix Pluggable.php File Errors in WordPress?

Usually you can fix this by deactivating the plugin and letting the plugin’s author know about the error.

Errors related to pluggable.php are almost never caused by the file itself.

Fix pluggable.php with WP Umbrella plugin

WP Umbrella is a plugin for managing, maintaining and monitoring WordPress sites. This plugin allows you to track PHP errors generated by themes and plugins.

Once installed and connected, go to the WP Umbrella dashboard.

How to Fix Pluggable.php File Errors in WordPress?

From here, you’ll retrieve all PHP errors generated by themes and plugins on your site.

Remember, the pluggable.php file should not be edited as it is part of the WordPress core files! Fortunately, the error message describes which plugin or theme file is conflicting with pluggable.php and which line of code.

Once sure, click on the pluggable.php related error for extra information to help you troubleshoot the issue. If you can’t fix the bug yourself, you can disable the plugin or send information to the plugin/theme’s support.


The pluggable.php error perfectly illustrates that you should try to install as few plugins as possible on your website.

Most plugins and themes available in the WordPress directory are of course safe and will not break your website.

However, every time you insert new content on your website, you increase the number of PHP requests your server has to handle.

This can increase your page load times and open security holes in your website.

The best way to identify plugins that are spamming your site is to monitor them with a solution like WP Umbrella.

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