Sorry for the late reply.
1-The left menu is a widget. You need to assign a menu to the widget in left sidebar. Go to Appearance > Widgets and make sure a menu is assigned to this sidebar.
2-Do you have any price table created? That is an element there, so it need for the price table to be already created first, then call it to that section of page. The demo data sometimes call on elements that needs to be created first.
If you find it difficult to create a price table, please add some wp credentials in a private reply. So we can create it for you.
