Title: Fatal error when activating plugin
Last modified: March 12, 2019

---

# Fatal error when activating plugin

 *  Resolved [purepixels](https://wordpress.org/support/users/purepixels/)
 * (@purepixels)
 * [7 years, 2 months ago](https://wordpress.org/support/topic/fatal-error-when-activating-plugin-54/)
 * Hello,
    I’m getting this fatal error when I activate the plugin. Do you know 
   what is wrong?
 * Thanks!
    Regards,
 * Jeroen
 * ===========
 * Fatal error: Uncaught Error: Call to undefined method Mailchimp::instance() in/
   home/waagcoach/domains/waagcoach.nl/public_html/wp-content/plugins/olalaweb-mailchimp-
   campaign-manager/class/Mailchimp.php:175 Stack trace: #0 /home/waagcoach/domains/
   waagcoach.nl/public_html/wp-content/plugins/olalaweb-mailchimp-campaign-manager/
   class/Mailchimp.php(179): MCC() #1 /home/waagcoach/domains/waagcoach.nl/public_html/
   wp-content/plugins/olalaweb-mailchimp-campaign-manager/mailchimp-campaigns.php(
   94): require_once(‘/home/waagcoach…’) #2 /home/waagcoach/domains/waagcoach.nl/
   public_html/wp-admin/includes/plugin.php(2050): include(‘/home/waagcoach…’) #
   3 /home/waagcoach/domains/waagcoach.nl/public_html/wp-admin/plugins.php(175):
   plugin_sandbox_scrape(‘olalaweb-mailch…’) #4 {main} thrown in /home/waagcoach/
   domains/waagcoach.nl/public_html/wp-content/plugins/olalaweb-mailchimp-campaign-
   manager/class/Mailchimp.php on line 175

Viewing 1 replies (of 1 total)

 *  Plugin Author [Matthieu](https://wordpress.org/support/users/matthieuscarset-1/)
 * (@matthieuscarset-1)
 * [7 years ago](https://wordpress.org/support/topic/fatal-error-when-activating-plugin-54/#post-11553789)
 * Hi [@purepixels](https://wordpress.org/support/users/purepixels/)
    please forgive
   the delay in replying.
 * There was a new version release yesterday `3.2.0` which should fix this issue.
 * I think it was cause by a name conflict with other(s) Mailchimp-related plugin(
   s).
 * Let us know,

Viewing 1 replies (of 1 total)

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

 * ![](https://s.w.org/plugins/geopattern-icon/olalaweb-mailchimp-campaign-manager_207092.
   svg)
 * [MailChimp Campaigns](https://wordpress.org/plugins/olalaweb-mailchimp-campaign-manager/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/olalaweb-mailchimp-campaign-manager/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/olalaweb-mailchimp-campaign-manager/)
 * [Active Topics](https://wordpress.org/support/plugin/olalaweb-mailchimp-campaign-manager/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/olalaweb-mailchimp-campaign-manager/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/olalaweb-mailchimp-campaign-manager/reviews/)

 * 1 reply
 * 2 participants
 * Last reply from: [Matthieu](https://wordpress.org/support/users/matthieuscarset-1/)
 * Last activity: [7 years ago](https://wordpress.org/support/topic/fatal-error-when-activating-plugin-54/#post-11553789)
 * Status: resolved