I installed dasboard and plugin Q&A. Roles for users

I installed dasboard and plugin Q&A.
Roles for users and the administrator set in the settings.
But the plugin does not work.
1. Page with the question appears without question text, the title and all.
2. Category page is displayed without the description of the category and the title.
3. Form ask a question yoursite.com / questions / ask / not displayed.
4. The question can only be added from the admin panel.