Title: Fatal error while activating plugin
Last modified: August 28, 2017

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# Fatal error while activating plugin

 *  [ammuyou](https://wordpress.org/support/users/ammuyou/)
 * (@ammuyou)
 * [8 years, 9 months ago](https://wordpress.org/support/topic/fatal-error-while-activating-plugin-3/)
 * I am getting fatal error while activating plugin
 * Fatal error: Uncaught Error: Call to undefined function utf8_decode() in /var/
   www/html/wp-content/plugins/ninja-forms/includes/Helper.php:44 Stack trace: #
   0 [internal function]: WPN_Helper::utf8_decode(‘Contact Me’) #1 /var/www/html/
   wp-content/plugins/ninja-forms/includes/Helper.php(42): array_map(Array, Array)#
   2 [internal function]: WPN_Helper::utf8_decode(Array) #3 /var/www/html/wp-content/
   plugins/ninja-forms/includes/Helper.php(42): array_map(Array, Array) #4 /var/
   www/html/wp-content/plugins/ninja-forms/includes/Abstracts/ModelFactory.php(132):
   WPN_Helper::utf8_decode(Array) #5 /var/www/html/wp-content/plugins/ninja-forms/
   ninja-forms.php(668): NF_Abstracts_ModelFactory->import_form(‘{“settings”:{“t…’)#
   6 /var/www/html/wp-includes/class-wp-hook.php(298): Ninja_Forms->activation(”)#
   7 /var/www/html/wp-includes/class-wp-hook.php(323): WP_Hook->apply_filters(”,
   Array) #8 /var/www/html/wp-includes/plugin.php(453): WP_Hook->do_action(Array)#
   9 /var/www/html/wp-admin/plugins.php(166): do_action(‘activate_ninja-…’) #10 
   in /var/www/html/wp-content/plugins/ninja-forms/includes/Helper.php on line 44

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

 *  Plugin Author [Kevin Stover](https://wordpress.org/support/users/kstover/)
 * (@kstover)
 * [8 years, 9 months ago](https://wordpress.org/support/topic/fatal-error-while-activating-plugin-3/#post-9447864)
 * Hi,
 * It looks like your host has disabled PHP’s XML parser functions. These are enabled
   by default, and a great majority of hosts do not disable them. I apologise for
   the inconvenience, but you’ll need to reach out to your host and ask them to 
   enable those functions.
 * If you have any other questions, you can always submit a support ticket here:
   [https://ninjaforms.com/contact/](https://ninjaforms.com/contact/).
 *  Thread Starter [ammuyou](https://wordpress.org/support/users/ammuyou/)
 * (@ammuyou)
 * [8 years, 9 months ago](https://wordpress.org/support/topic/fatal-error-while-activating-plugin-3/#post-9449311)
 * Many thanks for your swift support 🙂
 *  Plugin Contributor [Zach Skaggs](https://wordpress.org/support/users/wpnzach/)
 * (@wpnzach)
 * [8 years, 8 months ago](https://wordpress.org/support/topic/fatal-error-while-activating-plugin-3/#post-9480268)
 * No problem, ammuyou! Please let us know if there’s anything we can do to turn
   your view of Ninja Forms around…we’re always open to feedback from our users!

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

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

 * ![](https://ps.w.org/ninja-forms/assets/icon-256x256.png?rev=1649747)
 * [Ninja Forms - The Contact Form Builder That Grows With You](https://wordpress.org/plugins/ninja-forms/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/ninja-forms/#faq)
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 * [Unresolved Topics](https://wordpress.org/support/plugin/ninja-forms/unresolved/)
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 * 3 replies
 * 3 participants
 * Last reply from: [Zach Skaggs](https://wordpress.org/support/users/wpnzach/)
 * Last activity: [8 years, 8 months ago](https://wordpress.org/support/topic/fatal-error-while-activating-plugin-3/#post-9480268)