Express won’t let me import pdf anymore.

I uploaded a PDF twice to Adobe Express, and now when I try to upload it-  it says it corrupted, empty, or not a pdf.

The first two times it shifted two lines of text. I created it in indesign and it’s just a simple barebones pdf of just a text document. The lines are not shifted if I open it up from my files.  Importing it caused the lines to shift. I trashed those two first imports, and now it won’t let me import it again. The attached is a img of the pdf, I couldn’t work on the original anymore after Adobe Express corrupted it. 

Also, this UI sucks. I just want to type my words and the “related topics” keeps taking over my screen. I typed in a paragraph and I can’t even see it anymore.