Program window is black no matter what.
So, I was editing a video. Then I saw there's a new version of Premiere. I updated (to this April's update (2018)). After that my program view has been black. And it isn't just a black spot in the video, except if it is frozen to a black spot. I have tried looking other clips, and other stuff, but it stays in black. Audio works perfectly. I haven't done any color grading to the video, so it should not be up to that. If I try to render, it can render 0 frames in about 5 hours. Also, I am having a prompt saying something like

I have no workspace changes, at least any that would be important to me.
Could someone help me with this issue?