How Do I get my game mode options to display it only shows a blank screen?

I was able to start on a project and when everything was working great. After I closed out of my editor and later reopened it to continue my project I was not able to see any options in my game mode. I only see the compile, save, and search buttons, Those buttons display at the very top and the rest of the window is blank. I am using a windows 10 pc and working in ue 4.13.2 can anyone please help me. I have also tried opening other projects and even starting new one yet I still get the same outcome.