Title: Ninja Forms Processing jquery problem Error 4000
Last modified: May 25, 2021

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# Ninja Forms Processing jquery problem Error 4000

 *  Resolved [poolky](https://wordpress.org/support/users/poolky/)
 * (@poolky)
 * [5 years ago](https://wordpress.org/support/topic/ninja-forms-processing-jquery-problem-error-4000/)
 * Hi there,
    a friend of mine has a little form on which customer can order stuff.
   since a few weeks the form dosnt send anymore and is stuck on proccessing.
 * i get the following error in chrome dev console.
    [Chrome Dev Console Error](https://ibb.co/d5y5RK5)
 * I tried to ad ajax access in the htaccess and other things but it dosnt seem 
   to work at all. Even the Errormessage stays the same no matter what i am doing.
 * Any ideas on that?
 * The page I need help with: _[[log in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2Fninja-forms-processing-jquery-problem-error-4000%2F%3Foutput_format%3Dmd&locale=en_US)
   to see the link]_

Viewing 2 replies - 1 through 2 (of 2 total)

 *  Plugin Contributor [Justin McElhaney](https://wordpress.org/support/users/jmcelhaney/)
 * (@jmcelhaney)
 * [4 years, 8 months ago](https://wordpress.org/support/topic/ninja-forms-processing-jquery-problem-error-4000/#post-14906513)
 * Can you try temporarily deactivating all your plugins that are not Ninja Forms
   add-ons and switching to a default WordPress theme like Twenty Twenty.
    If you
   do not have a development environment for your site (this is best practice and
   highly recommended), you can use the Health Check plugin ([https://wordpress.org/plugins/health-check/](https://wordpress.org/plugins/health-check/))
   to temporarily disable plugins and your theme for a single user session, instead
   of all users using your site. If this solves your issue, then the problem was
   caused by an issue in one of those plugins or your theme. Reactivate them one
   at a time until the issue returns to determine which plugin is causing the conflict.`
 * If you are still having issues, can you contact our official support at ninjaforms.
   com/contact/ so we can help you further troubleshoot.
 *  Thread Starter [poolky](https://wordpress.org/support/users/poolky/)
 * (@poolky)
 * [4 years, 8 months ago](https://wordpress.org/support/topic/ninja-forms-processing-jquery-problem-error-4000/#post-14927438)
 * Hey Justin,
 * Thank you for your answer on this old Topic.
    I fund the Problem back then. The
   Theme used was outdated and had a problem with jQuery and i had to use the Plugiun“
   jQuery Migrate Helper” and activate it.
 * After that the clients Menu would work as normal. That is just a bad fix and 
   i offered to build the Site new up to spec, which i am doing right now.
    Hope
   this Update helps others.

Viewing 2 replies - 1 through 2 (of 2 total)

The topic ‘Ninja Forms Processing jquery problem Error 4000’ is closed to new replies.

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 * 2 replies
 * 2 participants
 * Last reply from: [poolky](https://wordpress.org/support/users/poolky/)
 * Last activity: [4 years, 8 months ago](https://wordpress.org/support/topic/ninja-forms-processing-jquery-problem-error-4000/#post-14927438)
 * Status: resolved