Error: Publish API Response: 500 Internal Server Error

My Adobe Express pages have updated to the new Adobe Express software, meaning that my working files have been converted. Now whenever I try to update the public link (or if I try to create a new public link) I get the error: Publish API Response: 500 Internal Server Error.

I have a personal CC account and I have also tried to open/edit these pages on multiple browsers... 

Please help, I am stressing 🙂