Title: plugin not working on some forms
Last modified: August 8, 2017

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# plugin not working on some forms

 *  [fruchtfliege](https://wordpress.org/support/users/fruchtfliege/)
 * (@fruchtfliege)
 * [8 years, 9 months ago](https://wordpress.org/support/topic/plugin-not-working-on-some-forms/)
 * The ajax icon is spinning infinite on some forms if your plugin is activated.
   wordpress and contact form 7 has version 4.8.1.
 * the console logs an internal server error 500:
 * jquery.js?ver=1.12.4:4 POST [http://xxxxxxx.xxx/wp-json/contact-form-7/v1/contact-forms/275/feedback](http://xxxxxxx.xxx/wp-json/contact-form-7/v1/contact-forms/275/feedback)
   500 (Internal Server Error)
    send @ jquery.js?ver=1.12.4:4 ajax @ jquery.js?ver
   =1.12.4:4 wpcf7.submit @ scripts.js?ver=4.8.1:326 (anonymous) @ scripts.js?ver
   =4.8.1:53 dispatch @ jquery.js?ver=1.12.4:3 r.handle @ jquery.js?ver=1.12.4:3
 * i got this problem on multiple websites, please fix this!
    -  This topic was modified 8 years, 9 months ago by [fruchtfliege](https://wordpress.org/support/users/fruchtfliege/).

Viewing 1 replies (of 1 total)

 *  [Craig Ralston](https://wordpress.org/support/users/craig-ralston/)
 * (@craig-ralston)
 * [8 years, 9 months ago](https://wordpress.org/support/topic/plugin-not-working-on-some-forms/#post-9431760)
 * Hey [@fruchtfliege](https://wordpress.org/support/users/fruchtfliege/),
 * I just stumbled upon what appears to be the same (or at least very similar) issue
   and after a lot of troubleshooting, I discovered that since PHP error reporting
   was on, there was a PHP Warning about missing arguments and the HTML for that
   warning was being returned instead of valid JSON. After I set the following in
   the wp-config.php file, my forms started submitting normally again.
 *     ```
       define('WP_DEBUG', false);
       define( 'WP_DEBUG_DISPLAY', false );
       @ini_set( 'display_errors', 0 );
       ```
   
 * It may or may not be a solution to your specific issue but since I consistently
   found this post in my trip through Google searches, I figured it couldn’t hurt
   to provide a potential solution.
 * Hope it helps!
 * -Craig

Viewing 1 replies (of 1 total)

The topic ‘plugin not working on some forms’ is closed to new replies.

 * ![](https://ps.w.org/contact-form-7-mailchimp-extension/assets/icon-256x256.png?
   rev=1072113)
 * [Connect Contact Form 7 and Mailchimp](https://wordpress.org/plugins/contact-form-7-mailchimp-extension/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/contact-form-7-mailchimp-extension/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/contact-form-7-mailchimp-extension/)
 * [Active Topics](https://wordpress.org/support/plugin/contact-form-7-mailchimp-extension/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/contact-form-7-mailchimp-extension/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/contact-form-7-mailchimp-extension/reviews/)

 * 1 reply
 * 2 participants
 * Last reply from: [Craig Ralston](https://wordpress.org/support/users/craig-ralston/)
 * Last activity: [8 years, 9 months ago](https://wordpress.org/support/topic/plugin-not-working-on-some-forms/#post-9431760)
 * Status: not resolved