Most forms disappeared in admin panel

Hi, so I was duplicating and making changes to forms and suddenly.. they all disappeared, only one left – newsletter form. What’s more strange they’re stll visible on main page, for example contact form is still available as a user. When I want to modify mentioned form on contact page, it shows only newsletter is available from dropdown list (which is the only one available in admin panel, that is “All forms” tab). At first, when in admin panel I searched for contact form it worked, but now it doesnt show any form.