Download Error

I was trying to download a story I made on Adobe Express with my own assets. At first it stayed at 20% for a long time and then this error popped up (see the screenshot attached). My internet connection is stable and I've used this particular project for other stories, this time i changed some assets and text and wanted to download it. Funny thing is, in the meantime I made another story on Adobe Express, and this one downloaded without any issues. What's the problem here??