Demo Content not possible!

I have contacted the themen creator on envato, but my question was not answered. I installed the theme on my wordpress (With SSL) and when i click on one click install, nothing happens. I saw then with CTRL+SHIF+I the error. There are 2 errors. Please see the picture i upload here.

In you forum i saw that many users have problems with installing the demo content. For me is the demo content very important to beginn to work. I asked me, why you do not over the demo content with the theme in a folder like Demo…? I buyed many theme and mostly ther are the demo files in xml ready to upload from folder and thats works allways good.

You can send me the demo files or fix that bug. Please a dont have to much time. If you send me the demo xml files, so i can make forward… Sorry for my english, i speak german.
Hope you understand me 🙂

Thank you a lot
Regards,