Hi pethi,
Thanks for contacting us and choosing our product!
Sorry for late response because we just have weekend.
About your question about account to login back-end. If you install quickstart your must insert it when you install website.
You can see the video tutorial here:
hope this help!
If you still can't install it please pm me your site and hosting account. I'll make a video tutorial to help you install it!
thanks a lot for your reply.
Sorry, I overlooked that I could type in the login credentials for the backend during the Akeeba restore procedure.
The predefined login credentials are the well known "admin/admin".