netly on "[Plugin: Contact Form 7 Signature Addon] spinning after hit send"

Spinning after hit send,If I hand-written anything on the signature area.

If I don't write anything on the signature area and it send.

Thanks

https://wordpress.org/plugins/contact-form-7-signature-addon/

Hi

Do you use Wordfence ? There's currently a known issue with it i still have to adress.

Thank you for your reply, I only have two plugin installed. one is "Contact form 7" and one is "Contact Form 7 Signature Addon" ,I am using the default Theme twenty-sixteen,but it has the same issue.

Could you please give me any advice?

Wow, that's weird.
Latest version of both plugins ?
What are the fields you're using ? what's their names ? Can you please paste your CF7 form setup here (the one withe fields shortcodes) ?
Thanks

Thank you for your help.

Here is the shortcodes.

<p>Your Name (required)
[text* your-name] </p>

<p>Your Email (required)
[email* your-email] </p>

<p>Subject
[text your-subject] </p>

<p>Your Message
[textarea your-message] </p>

<p>signature
[signature* signature-426]</p>

<p>[submit "Send"]</p>