Title: Fatal errror!
Last modified: August 31, 2016

---

# Fatal errror!

 *  Resolved [ahansson89](https://wordpress.org/support/users/ahansson89/)
 * (@ahansson89)
 * [10 years, 8 months ago](https://wordpress.org/support/topic/fatal-errror-3/)
 * Fatal error: Uncaught Error: Call to undefined function mcrypt_get_iv_size() 
   in /var/www/html/wp-content/plugins/sendgrid-email-delivery-simplified/lib/class-
   sendgrid-tools.php:431 Stack trace: #0 /var/www/html/wp-content/plugins/sendgrid-
   email-delivery-simplified/lib/class-sendgrid-tools.php(229): Sendgrid_Tools::
   encrypt(‘xxxxxxxx’, ‘xxxxxxxx’) #1 /var/www/html/wp-content/plugins/sendgrid-
   email-delivery-simplified/lib/class-sendgrid-statistics.php(74): Sendgrid_Tools::
   get_password() #2 /var/www/html/wp-includes/plugin.php(525): Sendgrid_Statistics::
   add_statistics_menu(”) #3 /var/www/html/wp-admin/includes/menu.php(149): do_action(‘
   admin_menu’, ”) #4 /var/www/html/wp-admin/menu.php(279): require_once(‘/var/www/
   html/w…’) #5 /var/www/html/wp-admin/admin.php(138): require(‘/var/www/html/w…’)#
   6 /var/www/html/wp-admin/plugins.php(10): require_once(‘/var/www/html/w…’) #7{
   main} thrown in /var/www/html/wp-content/plugins/sendgrid-email-delivery-simplified/
   lib/class-sendgrid-tools.php on line 431
 * [https://wordpress.org/plugins/sendgrid-email-delivery-simplified/](https://wordpress.org/plugins/sendgrid-email-delivery-simplified/)

Viewing 9 replies - 1 through 9 (of 9 total)

 *  Anonymous User 12640152
 * (@anonymized-12640152)
 * [10 years, 8 months ago](https://wordpress.org/support/topic/fatal-errror-3/#post-6970757)
 * Thanks, can you tell me what version of PHP do you use ?
 *  Thread Starter [ahansson89](https://wordpress.org/support/users/ahansson89/)
 * (@ahansson89)
 * [10 years, 8 months ago](https://wordpress.org/support/topic/fatal-errror-3/#post-6970759)
 * 7.0.1
 *  Thread Starter [ahansson89](https://wordpress.org/support/users/ahansson89/)
 * (@ahansson89)
 * [10 years, 8 months ago](https://wordpress.org/support/topic/fatal-errror-3/#post-6970793)
 * Removed the login credentials
 *  Anonymous User 12640152
 * (@anonymized-12640152)
 * [10 years, 8 months ago](https://wordpress.org/support/topic/fatal-errror-3/#post-6970861)
 * We have added a fix for mcrypt library depencency issue in 1.7.2 version. Let
   us know if you still have issues.
 *  Anonymous User 12640152
 * (@anonymized-12640152)
 * [10 years, 8 months ago](https://wordpress.org/support/topic/fatal-errror-3/#post-6970862)
 * We have added a fix for mcrypt library depencency issue. Let us know if you still
   have issues.
 *  Anonymous User 12640152
 * (@anonymized-12640152)
 * [10 years, 8 months ago](https://wordpress.org/support/topic/fatal-errror-3/#post-6970863)
 * We have added a fix for mcrypt library dependency issue. Let us know if you still
   have issues.
 *  Anonymous User 12640152
 * (@anonymized-12640152)
 * [10 years, 8 months ago](https://wordpress.org/support/topic/fatal-errror-3/#post-6970864)
 * We have added a fix for mcrypt library depencency issue. Let us know if you still
   have issues.
 *  Anonymous User 12640152
 * (@anonymized-12640152)
 * [10 years, 8 months ago](https://wordpress.org/support/topic/fatal-errror-3/#post-6970865)
 * We have added a fix for mcrypt library dependency issue. Let us know if you still
   have issues.
 *  Anonymous User 12640152
 * (@anonymized-12640152)
 * [10 years, 8 months ago](https://wordpress.org/support/topic/fatal-errror-3/#post-6970866)
 * We have added a fix for mcrypt library depencency issue. Let us know if you still
   have issues.

Viewing 9 replies - 1 through 9 (of 9 total)

 The topic ‘Fatal errror!’ is closed to new replies.

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 * 9 replies
 * 2 participants
 * Last reply from: Anonymous User 12640152
 * Last activity: [10 years, 8 months ago](https://wordpress.org/support/topic/fatal-errror-3/#post-6970866)
 * Status: resolved