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This article discusses what to do when your web site displays a blank page. This problem is also sometimes referred to as the "white screen of death."
When you try to view a page on a your site, a blank page may appear. This problem may occur on only one page, several pages, or the entire site. Additionally, you may be unable to log in to your web application.
There are numerous reasons why this problem can occur, and it is often specific to the web application or CMS you are running. Use the following general recommendations and guidelines to help determine the cause.
If you are running a content management system (CMS) or e-commerce platform on your site, a malfunctioning plugin, module, extension, or theme is a common cause of blank pages.
To determine if this is the case, selectively disable the web application's plugins, modules, and extensions one by one until the affected page or pages load in your browser. For example, if you install a new module and begin experiencing problems, that new module should be a prime suspect.
Alternatively, if you suspect a theme is causing display problems, try reverting to the default theme.
After you determine which component is causing the problem, you can update it, leave it disabled, or remove it entirely to restore site access.
Some CMS applications provides debugging and logging features. By enabling these features, you can often narrow down where problems occur in the application.
The server error log and access log can also provide clues as to what is causing the problem. For more information about how to view these files on your server, please see this article.
During normal operation, PHP error reporting and logging features are usually disabled. This is a good security practice, but it makes diagnosing problems more difficult. To see what is happening behind the scenes, you can temporarily enable the following features.
When you enable error reporting in PHP, error messages are displayed on the page. While this is an obvious security risk, it can also provide valuable information when you are trying to find the cause of a problem. For information about how to enable PHP error reporting, please see these articles:
When you enable error logging in PHP, error messages are logged into a file. For information about how to enable PHP error reporting, please see these articles: