Title: undefined error
Last modified: September 20, 2021

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# undefined error

 *  Resolved [ramonrenata](https://wordpress.org/support/users/ramonrenata/)
 * (@ramonrenata)
 * [4 years, 8 months ago](https://wordpress.org/support/topic/undefined-error-9/)
 * Since I have updated WordPress to the latest version 5.8.1. Since then I’m getting
   an error when people fill in the form at [https://rsvrenata.nl/testaanmelding/](https://rsvrenata.nl/testaanmelding/)
 * The error I’m getting is: There was an error processing the form. try again (
   undefined). The filled in form you can see back in the plug-in itself but doesn’t
   send through the linked email.
 * Is this a known error and how to solve this error?
 * Thanks in forward!
 * The page I need help with: _[[log in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2Fundefined-error-9%2F%3Foutput_format%3Dmd&locale=en_US)
   to see the link]_

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

 *  Plugin Support [Patrick – WPMU DEV Support](https://wordpress.org/support/users/wpmudevsupport12/)
 * (@wpmudevsupport12)
 * [4 years, 8 months ago](https://wordpress.org/support/topic/undefined-error-9/#post-14889320)
 * Hi [@ramonrenata](https://wordpress.org/support/users/ramonrenata/)
 * Sorry to hear you are having this issue.
 * I can see there are two JS errors on your page, from the theme & timetable plugin.
 * [https://monosnap.com/file/LQFvehDNYUqHoBEAhllNu85AFviL5V](https://monosnap.com/file/LQFvehDNYUqHoBEAhllNu85AFviL5V)
 * As an initial troubleshooting test, can you please try to create a staging website
   using a plugin like [https://wordpress.org/plugins/wp-staging/](https://wordpress.org/plugins/wp-staging/)
   or following this guide [https://wpmudev.com/blog/set-up-staging-site-cheap-shared-hosting/](https://wpmudev.com/blog/set-up-staging-site-cheap-shared-hosting/)
 * Once done, please try a plugin and theme conflict test following this test flow:
 * [https://wpmudev.com/wp-content/uploads/2015/09/Support-Process-Support-Process.gif](https://wpmudev.com/wp-content/uploads/2015/09/Support-Process-Support-Process.gif)
 * Let us know the result you got.
    Best Regards Patrick Freitas
 *  Plugin Support [Amin – WPMU DEV Support](https://wordpress.org/support/users/wpmudev-support2/)
 * (@wpmudev-support2)
 * [4 years, 8 months ago](https://wordpress.org/support/topic/undefined-error-9/#post-14954576)
 * Hello [@ramonrenata](https://wordpress.org/support/users/ramonrenata/) ,
 * We haven’t heard from you for a while now, so it looks like you no longer need
   our assistance.
 * Please feel free to re-open this ticket if needed.
 * Kind regards,
    Kasia

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

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## Tags

 * [undefined](https://wordpress.org/support/topic-tag/undefined/)

 * 2 replies
 * 3 participants
 * Last reply from: [Amin – WPMU DEV Support](https://wordpress.org/support/users/wpmudev-support2/)
 * Last activity: [4 years, 8 months ago](https://wordpress.org/support/topic/undefined-error-9/#post-14954576)
 * Status: resolved