Contact form 7 Signature Addon not working

Contact Form 7 Signature Field that will not work then you need check-in contact form 7 if there is any jquery issue in the console log.

if there is any kind of issue then you can email on our support page and email us.

also, check that shortcode which you using in contact form 7 that is fully correct that is case sensitive if the problem is there than you need to write it perfectly.