Title: Plugin shows empty page – error log attached
Last modified: September 22, 2016

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# Plugin shows empty page – error log attached

 *  [praveensagitt23](https://wordpress.org/support/users/praveensagitt23/)
 * (@praveensagitt23)
 * [9 years, 7 months ago](https://wordpress.org/support/topic/plugin-shows-empty-page-error-log-attached/)
 * This is the PHP error frm my site error log
    I’ve done everything. FB reviews
   my articles. but I couldn’t push the topics.
 * all I get is a blank screen without any error displayed.
 * > [Thu Sep 22 08:21:07 2016] [error] [client 188.40.46.135] PHP Warning: call_user_func_array()
   > expects parameter 1 to be a valid callback, function ‘sfw_load_pwd’ not found
   > or invalid function name in /home/site/mysite/wordpress/wp-includes/plugin.
   > php on line 524
 * [Thu Sep 22 08:21:07 2016] [error] [client 182.74.243.43] PHP Fatal error: Uncaught
   exception ‘Facebook\Exceptions\FacebookAuthenticationException’ with message ‘
   This IP address is not on the Server IP whitelist’ in /home/site/mysite/wordpress/
   wp-content/plugins/fb-instant-articles/vendor/facebook/php-sdk-v4/src/Facebook/
   Exceptions/FacebookResponseException.php:106\nStack trace:\n#0 /home/site/mysite/
   wordpress/wp-content/plugins/fb-instant-articles/vendor/facebook/php-sdk-v4/src/
   Facebook/FacebookResponse.php(210): Facebook\Exceptions\FacebookResponseException::
   create(Object(Facebook\FacebookResponse))\n#1 /home/site/mysite/wordpress/wp-
   content/plugins/fb-instant-articles/vendor/facebook/php-sdk-v4/src/Facebook/FacebookResponse.
   php(255): Facebook\FacebookResponse->makeException()\n#2 /home/site/mysite/wordpress/
   wp-content/plugins/fb-instant-articles/vendor/facebook/php-sdk-v4/src/Facebook/
   FacebookResponse.php(82): Facebook\FacebookResponse->decodeBody()\n#3 /home/site/
   mysite/wordpress/wp-content/plugins/fb-instant-articles/vendor/facebook/php-sdk-
   v4/src/Faceb in /home/site/mysite/wordpress/wp-content/plugins/fb-instant-articles/
   vendor/facebook/php-sdk-v4/src/Facebook/Exceptions/FacebookResponseException.
   php on line 106, referer: [https://blogs.mysite.com/wp-admin/edit.php](https://blogs.mysite.com/wp-admin/edit.php)
 * [Thu Sep 22 08:21:15 2016] [error] [client 188.40.46.135] PHP Warning: call_user_func_array()
   expects parameter 1 to be a valid callback, function ‘sfw_load_pwd’ not found
   or invalid function name in /home/site/mysite/wordpress/wp-includes/plugin.php
   on line 524
    -  This topic was modified 9 years, 7 months ago by [praveensagitt23](https://wordpress.org/support/users/praveensagitt23/).
    -  This topic was modified 9 years, 7 months ago by [praveensagitt23](https://wordpress.org/support/users/praveensagitt23/).
    -  This topic was modified 9 years, 7 months ago by [praveensagitt23](https://wordpress.org/support/users/praveensagitt23/).

The topic ‘Plugin shows empty page – error log attached’ is closed to new replies.

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 * Last reply from: [praveensagitt23](https://wordpress.org/support/users/praveensagitt23/)
 * Last activity: [9 years, 7 months ago](https://wordpress.org/support/topic/plugin-shows-empty-page-error-log-attached/)
 * Status: not resolved