Site Origin Editor Editor is not working. Can someone please help me?

Here is the problem: When I go to edit text in Site Origin Editor (rich text widget) I see the button to change font and color, but when I click on them it doesn’t do anything. Behind the window, I do see a little bit of the font selections pop up, but I can’t get to them. I am wondering if editing color is doing the same thing (thought I can’t see behind the window). Do you think this is a plugin issue? I changed themes recently, but it was working just fine yesterday. Thanks so much!