Unable to export animation

Try as I might, whenever I try to export my project, I have to sit in wait, only for the loading screen to finish and close as nothing happened. Media Encoder opens up, but instantly fails to convert the file. And if I check the export location, there is no file there.

Can someone help? Because this is making no sense. I go to file, export video/media, push export, and it literally doesn't do what is listed.