You need to provide more information then that Chris.
If it is a content holder - site manager - content holders.
If the content is removed from a page etc then you need to add it back in.
If it is a web app item then you need to go to that item and enable it.
You do not turn on reports, you just go to it in the admin menu on the left.
IF you are referring to features you do not see when you login in to admin either the site create has not given you permission to access those features OR you are on a plan that does not support them.