maqei2014

I can do this on the site display style:

https://s7.depic.me/01411/4luwm7cf38tr_o/cao.png

Can not do the verification code style

https://s7.depic.me/01410/sqmhy6yf54lu_o/cap.png

Disable all plug-in or an error occurs.
To use the style shown below the line. Why is not achieved?

https://s7.depic.me/01410/sqmhy6yf54lu_o/cap.png

That displays a blank page
The following is a list of plugins I installed:
Google Sitemap
WP-PageNavi
WP Super Cache
Yet Another Related Posts Plugin

You can use this display：
[content_protector password=”1234″][/content_protector]

Use this display a blank page. You can not use CAPTCHA：
[content_protector password=”CAPTCHA”][/content_protector]

As in the following image links in style