Hello,
Create an account via Dashboard (Users > Add new) with administrator role http://prntscr.com/s3rc9m > provide us with username and password via the Private Content area http://prntscr.com/s5mao7 You can use any email for it. Once the question will be solved, you will be able to delete this account.
Sorry, but we can’t say the reason for the problem without access.
Regards