Unable to import demo content: error (500)

Hey, awesome theme :) I'm having difficulty importing the demo content though. I tried both importing using the one-click catch themes demo importer and tried importing the files manually from here https://github.com/catchthemes/ct-demo-import/tree/master/import-files/scapeshot/pro. I get the same 500 error from when I try both methods. Can you please help :(