Hello again, I have already performed the tests mentioned and the error persists.
Searching through previous threads, I found a message from three years ago related to a form in an Elementor pop-up window, and I wonder if this has anything to do with my case, since I have the form in a floating form (pop-up window).
When I tested the same form on a normal page, it worked correctly with its recaptcha.
However, the thread indicated that the error would be fixed in version 1.17 of the plugin.
I don’t know if they haven’t fixed it yet or if they have, and I thank you again. This is the first time I have used this plugin.
In any case, the client told me not to use forms, as they are more traditional and do not use email, preferring to schedule appointments by phone.
Thank you very much for your response. Apart from the error, I really like your plugin and will continue to use it in the future.