Sidebar is missing (backend)

Hello

I have a strange issue with pinpoint. I’m trying to add different kind of rooms but i can’t find how to do it. The thing is that if you see this screenshot (from documentation) http://prntscr.com/9kcfa0 there is a menu in the sidebar, in my wordpress is hidden. http://prntscr.com/9kceyy
What i did wrong?
Is this where you add different type of rooms?

Thank you!

https://ww.wp.xz.cn/plugins/booking-system/