“An error occurred while processing the form. (Invalid nonce)”

Hi @amartinelli1230

I hope you are doing well today. Since the form was working for some time, and all of a sudden, it stopped working and started throwing errors, this might be as a result of a plugin/theme conflict.

I’d suggest that you perform a full plugin/theme conflict test to identify the cause of this issue.
Before you embark on this please make sure you do a complete backup of your website(Preferably, perform the test in a staging site)

Steps;

1. Deactivate all plugins except Forminator
2. Switch to a basic theme as Twenty Twenty Two

To learn more about how the plugin conflict test is executed, please see this guide below:
https://wpmudev.com/docs/getting-started/getting-support/#conflict-test

Check out this handy flowchart of the troubleshooting process detailed above.
https://wpmudev.com/wp-content/uploads/2015/09/Support-Process-Support-Process.gif

Option 2;

To further investigate this issue could you please export your form https://wpmudev.com/docs/wpmu-dev-plugins/forminator/#import-export to pastebin.com or Google Drive and share the link?

Kind regards,
Olumide Akintunde

+1

Hi @amartinelli1230

The first option I recommend before following the steps above is to resolve this issue by setting the form to load with Ajax.
To do this, follow the steps below:

1. Go to the form screen.
2. Click on the edit button for the form with the issue.
3. Click on ‘Behavior’ in the Edit form screen (navigation section).
4. Scroll down to ‘Method.’
5. Select ‘Ajax’ (if not already selected).
6. Click on ‘Update.’
   This should resolve the issue.
   

Best regards,
Olumide Akintunde

Hi @amartinelli1230,

“An error occurred while processing the form. Please try again
(Invalid nonce. Please refresh your browser.)”

I’m afraid, this isn’t something I could replicate out of the box. There could be many factors for such an error to occur which also include conflicts.

Is it possible to also share the page URL where you notice the issue while submitting the form, so that we could have a better idea?

Looking forward to your repsone.

Kind Regards,

Nithin

Hi @amartinelli1230

We haven’t heard from you in a while, I’ll go and mark this thread as resolved. If you have any additional questions or require further help, please let us know!

Kind Regards,
Kris