Getting a 502 error after selecting Slider Revolution

Hi,

I’m getting a 502 “The page request was canceled because it took too long to complete” when going to the Revolution Slider in my admin console. When I click on “Navigation Editor” it goes to it, but when I click on “Slider Revolution” it tries to load for a minute or so and then throws the 502 error. I have Reinstalled the theme twice and still no luck. Please help!

Aaron