Kodi menu doesn’t show on main screen

I’m new at this so forgive my lack of knowledge. My kodi doesn’t show the default screen when it opens. I’m not even sure that is what it is called. but i mean the main screen that comes up that says movies, programs, system and the like. How do i get that to show up? I’m wanting to add some builds and everything directs me to that screen but I don’t have it and don’t know how to get it back. There is a kodi icon that shows but if I click it it is just the media files and not the menu of the main screen.