thx for this great WordPress plugin :-) Unfortunately we can’t get it to work with Contact Form7 on our new site. The plugin always shows the “Invalid Captcha Value” error.
Any ideas? You can find the site here: https://dev-con.westernacher.com/
Do you use any of the caching plugins on your site? Is it enabled across all pages?
I am not using any cashe plugin on my site but also getting “Invalid Captcha Value” error.