Rendering

Render. I am using Premiere Elements 2020. This is the first time I have had this problem. I am using Windows 10. I upload the video clip that I want to use. I place it on the timeline. I click on render. Nothing happens, except that the box opens up, and stays open, with nothing happening. No eror message. And just now I decided to start over again, and now it won't even upload the video.