Content protected breaking the style of the post

Hi, guys…

When using the shortcode [not-level-visitors]

in some posts the style is break, the sidebar is displaying wrong…

also, when aplying the same [not-level-visitors] and vieing that protected post with some other acces level… I just got a 404 error.. it shoul display it… it’s happening in some posts and in other posts it’s working ok.

please, need help, this plugin doesn’t function like it supposed