Title: Uncaught ReferenceError: mc4wp is not defined
Last modified: November 11, 2020

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# Uncaught ReferenceError: mc4wp is not defined

 *  Resolved [Palomba](https://wordpress.org/support/users/palomba/)
 * (@palomba)
 * [5 years, 7 months ago](https://wordpress.org/support/topic/uncaught-referenceerror-mc4wp-is-not-defined/)
 * How can I fix this error?
 * Uncaught ReferenceError: mc4wp is not defined
    at (index):427
 * The page I need help with: _[[log in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2Funcaught-referenceerror-mc4wp-is-not-defined%2F%3Foutput_format%3Dmd&locale=en_US)
   to see the link]_

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

 *  Plugin Contributor [Harish Chouhan](https://wordpress.org/support/users/hchouhan/)
 * (@hchouhan)
 * [5 years, 7 months ago](https://wordpress.org/support/topic/uncaught-referenceerror-mc4wp-is-not-defined/#post-13648653)
 * Hey [@palomba](https://wordpress.org/support/users/palomba/),
 * Thanks for reaching out to us.
 * Can you please let us know which version of our plugin you are using?
 *  Thread Starter [Palomba](https://wordpress.org/support/users/palomba/)
 * (@palomba)
 * [5 years, 7 months ago](https://wordpress.org/support/topic/uncaught-referenceerror-mc4wp-is-not-defined/#post-13648788)
 * Hi Harish,
 * We are using version 4.8.1 and premium version 4.8.10.
 *  Plugin Contributor [Harish Chouhan](https://wordpress.org/support/users/hchouhan/)
 * (@hchouhan)
 * [5 years, 7 months ago](https://wordpress.org/support/topic/uncaught-referenceerror-mc4wp-is-not-defined/#post-13648898)
 * Hey [@palomba](https://wordpress.org/support/users/palomba/),
 * Since you are using our premium plugin, please contact us directly using the 
   email provided on [https://www.mc4wp.com/contact/](https://www.mc4wp.com/contact/).
 * WordPress.org does not allow support of premium products.

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

The topic ‘Uncaught ReferenceError: mc4wp is not defined’ is closed to new replies.

 * ![](https://ps.w.org/mailchimp-for-wp/assets/icon-256x256.png?rev=1224577)
 * [MC4WP: Mailchimp for WordPress](https://wordpress.org/plugins/mailchimp-for-wp/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/mailchimp-for-wp/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/mailchimp-for-wp/)
 * [Active Topics](https://wordpress.org/support/plugin/mailchimp-for-wp/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/mailchimp-for-wp/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/mailchimp-for-wp/reviews/)

 * 3 replies
 * 2 participants
 * Last reply from: [Harish Chouhan](https://wordpress.org/support/users/hchouhan/)
 * Last activity: [5 years, 7 months ago](https://wordpress.org/support/topic/uncaught-referenceerror-mc4wp-is-not-defined/#post-13648898)
 * Status: resolved