BuddyPress.org

Hello! Could you please help me with the issue if my custom theme. When I switch on it – I can’t create a group, because the is no any buttons ect. I use the simplest architecture at my theme: functions, page, archive, single, home, index, header, footer. And with the url mysite/groups/create/step/group-details/ the is a template of a page.php: header + footer + <?php the_content();?> There is only The title. When I switch to anoter theme – all the group setting appears when I try to create a group. I understand that there is a problem with my theme. Are there any additional requirements to use simplest custom theme with BuddyPress? Are there ane specific code or something else that I’ve missed? Thank you!