Thank you so much for using our theme Infinite Photography. As your question, we found that the layout is appearing there as no sidebar. And in single page there is no sidebar too. We are in confusion that what you mean to say about the white space on home page ? The space between the two images? Please elaborate your question.
The sidebar options is found on “Go to Appearance > Customize > Layout/Design Option > Default Sidebar Layout” and change the layout of the theme. We are soon going to launch the premium version of this theme with lots of additional features. You may wait for it. If you have any question regarding our theme, please write us. We will provide the best support for you.