Title: Fatal error
Last modified: July 28, 2020

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# Fatal error

 *  [youie](https://wordpress.org/support/users/youie/)
 * (@youie)
 * [5 years, 10 months ago](https://wordpress.org/support/topic/fatal-error-3571/)
 * Hi Support-Team,
    when changing the order status to “In Wartestellung” (waiting)
   I get the following fatal error:
 * Fatal error: Uncaught Error: Call to a member function get_cart() on null in /
   kunden/wp-content/plugins/mailjet-for-wordpress/src/includes/SettingsPages/WooCommerceSettings.
   php:589 Stack trace: #0 /kunden/wp-content/plugins/mailjet-for-wordpress/src/
   includes/SettingsPages/WooCommerceSettings.php(900): MailjetPlugin\Includes\SettingsPages\
   WooCommerceSettings->cart_change_timestamp() #1 /kunden/wp-includes/class-wp-
   hook.php(290): MailjetPlugin\Includes\SettingsPages\WooCommerceSettings->update_status_on_order(
   8416, ‘processing’) #2 /kunden/wp-includes/class-wp-hook.php(312): WP_Hook->apply_filters(”,
   Array) #3 /kunden/wp-includes/plugin.php(478): WP_Hook->do_action(Array) #4 /
   kunden/wp-content/plugins/woocommerce/includes/class-wc-order.php(373): do_action(‘
   woocommerce_ord…’, 8416, ‘processing’, ‘on-hold’, Object(Automattic\Wo in /kunden/
   wp-content/plugins/mailjet-for-wordpress/src/includes/SettingsPages/WooCommerceSettings.
   php on line 589
 * Any idea?
 * Thank you in advance
 * youie
 * The page I need help with: _[[log in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2Ffatal-error-3571%2F%3Foutput_format%3Dmd&locale=en_US)
   to see the link]_

Viewing 3 replies - 1 through 3 (of 3 total)

 *  Thread Starter [youie](https://wordpress.org/support/users/youie/)
 * (@youie)
 * [5 years, 10 months ago](https://wordpress.org/support/topic/fatal-error-3571/#post-13189027)
 * Hello Support-Team,
 * do you have a solution for the problem?
 * Thank you
 * youie
 *  Thread Starter [youie](https://wordpress.org/support/users/youie/)
 * (@youie)
 * [5 years, 10 months ago](https://wordpress.org/support/topic/fatal-error-3571/#post-13193578)
 * Hello Support-Team,
 * even after updating the plugin the fatal error is popping up!
    When changing 
   the status of an order to “waiting” I get the following message. Can you please
   tell me what to do to fix this problem!
 * Fatal error: Uncaught Error: Call to a member function get_cart() on null in /
   kunden/wp-content/plugins/mailjet-for-wordpress/src/includes/SettingsPages/WooCommerceSettings.
   php:589 Stack trace: #0 /kunden/wp-content/plugins/mailjet-for-wordpress/src/
   includes/SettingsPages/WooCommerceSettings.php(900): MailjetPlugin\Includes\SettingsPages\
   WooCommerceSettings->cart_change_timestamp() #1 /kunden/wp-includes/class-wp-
   hook.php(290): MailjetPlugin\Includes\SettingsPages\WooCommerceSettings->update_status_on_order(
   8416, ‘processing’) #2 /kunden/wp-includes/class-wp-hook.php(312): WP_Hook->apply_filters(”,
   Array) #3 /kunden/wp-includes/plugin.php(478): WP_Hook->do_action(Array) #4 /
   kunden/wp-content/plugins/woocommerce/includes/class-wc-order.php(373): do_action(‘
   woocommerce_ord…’, 8416, ‘processing’, ‘on-hold’, Object(Automattic\Wo in /kunden/
   wp-content/plugins/mailjet-for-wordpress/src/includes/SettingsPages/WooCommerceSettings.
   php on line 589
 * Thank you
 * youie
 *  Thread Starter [youie](https://wordpress.org/support/users/youie/)
 * (@youie)
 * [5 years, 10 months ago](https://wordpress.org/support/topic/fatal-error-3571/#post-13211931)
 * Hello Support-Team,
 * is there no support for my problem?
 * youie

Viewing 3 replies - 1 through 3 (of 3 total)

The topic ‘Fatal error’ is closed to new replies.

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 * 3 replies
 * 1 participant
 * Last reply from: [youie](https://wordpress.org/support/users/youie/)
 * Last activity: [5 years, 10 months ago](https://wordpress.org/support/topic/fatal-error-3571/#post-13211931)
 * Status: not resolved