Plugin not working anymore

Hello,

I am using your plugin since 3 months and all worked as well, but with the update of wordpress i think, my reading groups aren’t working anymore. I have my reading group, the members of this group and my post with the parameter of reading group checked. When the post is public, everyone can see it, but when the post is private, nobody can see it even if the box of group reading is checked with the right group and even if we are connected as administrator or subscriber.
For my page with posts, I am using visual composer to set posts and the filter of them (with post grid). Maybe it’s visual composer which is broken my settings ?
I specify that the plugin worked before.

Thank you and sorry for my bad english, Wendy.

The page I need help with: [log in to see the link]