Are you using Windows or a Mac? In Windows I have the folder selection pane.
Do you see the list of files in the current folder that you are in? If so, there should be a vertical scroll bar to the left of the list of files. That scroll bar is actually part of the folder selection pane. The blank space to the left of the scroll bar is the folder pane. It may be blank because you are so deep in the folder hierarchy that the current level of folders is pushed off to the right. Drag the right edge of the scroll bar to the right, to make the folder pane wider, and you should see the folders.
