error message not displaying

HI,
I just installed this plugin as recommended for S2Member plugin.

When I type the captcha in wrong, it refreshes with a new one – but it looks like up above on the form there should be an error message, and nothing is being displayed.

http://www.maximizeyourwealthnow.com/wp-login.php?action=register

https://ww.wp.xz.cn/plugins/si-captcha-for-wordpress/