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Enabling Error Reporting WHMCS

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When Should You Enable Display Errors

Display Errors provides additional information when you experience a critical error that results in one of the following issues:

  • Friendly "Oops!" pages
  • Entirely blank pages
  • Partially rendered pages

In most cases, use the Log Errors and SQL Debug Mode options first. These options will usually capture the same information that Display Errors renders. In the event that these options are not viable or do not yield any information, Display Errors is a good alternative.

Display Errors will show your error information to anyone who is encountering the same error condition. Avoid showing errors to visitors or non-privileged staff whenever possible.

Typical Causes

Some of the most common causes of "Oops!", partial, or empty page rendering include:

  • Missing or corrupted files or incomplete uploads.
  • The server doesn't meet the minimum system requirements.
  • PHP, Apache or ionCube Loader®-related errors.
  • Incompatible hooks or addons.
  • Syntax errors in custom modules, hooks, or templates.

Enabling Error Reporting

Enabling From The Admin Area

If possible, attempt the following steps to enable Display Errors via the Admin Area:

  1. Go to Configuration () > System Settings > General Settings or, prior to WHMCS 8.0, Setup > General Settings.
  2. Choose the Other tab.
  3. Select Display Errors.
  4. Click Save Changes.
  5. Retry the steps that previously led to the blank or partially-rendered page. The system will display additional error information.

Remember to disable Display Errors when you are finished troubleshooting. Leaving error display enabled can be a security concern.

Enabling From Your Configuration File

If the error is severe enough, you may not be able to log in to the admin area. In those situations, there is a manual configuration file flag option that you can add to the configuration.php file in the WHMCS root directory to enable error reporting.

Add the lines to the end of the configuration.php file. This will be immediately before the closing PHP tag (?>) if your configuration.php file has one. If it doesn't, this will be after the last line in the file.

 

$display_errors = true;

 

After adding the lines and saving and uploading the file, retry the steps that previously led to the blank or partially rendered page. The system will display additional error information.

Remember to disable Display Errors when you are finished troubleshooting. Leaving error display enabled can be a security concern.

 

Disabling Error Reporting

Disabling from the admin area

If you enabled error reporting via the admin area, make sure to follow the steps below after you finish troubleshooting:

  1. Navigate to Configuration () > System Settings > General Settings or, prior to WHMCS 8.0, Setup > General Settings.
  2. Choose the Other tab.
  3. Deselect Display Errors at the bottom of the page.
  4. Click Save Changes.

Disabling from the configuration.php file

If you enabled error reporting via the configuration.php file, make sure to remove the following line from the configuration.php file after you finish troubleshooting.

 

$display_errors = true;

 

Sometimes, you may also see the following lines in configuration.php file:

 

$display_errors = E_NOTICE;
$display_errors = E_ALL;

 

As a precaution, remove any lines starting with $display_errors from the configuration.php file.

 

PHP Warnings and Notices

If the Display Error options are disabled and you're still seeing warning messages, it indicates the Error Reporting level in your server's PHP configuration is too high. This is a PHP configuration level issue. Shared hosting or reseller users may require the assistance of the hosting provider.

If you have sufficient access and have configured your server to use WHM for administration, follow these steps:

  1. In WHM, navigate to Software >> MultiPHP INI Editor.
  2. Click the Editor Mode tab.
  3. Select your PHP version from the Select a PHP version menu.
  4. Scroll down to the error_reporting setting.
  5. Change the value to the following string:

 

E_ALL & ~E_WARNING & ~E_USER_WARNING & ~E_NOTICE & ~E_USER_NOTICE & ~E_STRICT & ~E_DEPRECATED & ~E_USER_DEPRECATED

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