Error: Invalid action URL is detected??

What other plugins and theme do you use on the site?

Theme is Ocean WP. Plugins are WooCommerce , Elementor, Essential Add Ons for Elementor, Husky for WooCommerce, Custom Fonts, Reading Time WP, Ocean Extra, Ocean Social Sharing, Security Optimzer, Speed Optimizer, YITH WooCommerce Catalog Mode, Klaviyo and ACF.

Try switching to the default theme, deactivating all plugins excluding Contact Form 7, and clearing all cache data.

Why you are advised to deactivate plugins and switch to the default theme.

Found the problem. I added some code to sync with Netsuite and that’s the invalid URL.

I originally added this in functions.php:

add_filter(‘wpcf7_form_action_url’, ‘wpcf7_custom_form_action_url’);
function wpcf7_custom_form_action_url()
{
return ‘https://forms.na1.netsuite.com/app/site/crm/externalleadpage.nl?compid=TSTDRV1184964&formid=25&h=57bc2a41b72dc0e0b5ed’;
}