Provide temporary wp-admin and FTP access, so we can take a closer look.
Create an account via Dashboard (Users > Add new) with an administrator role http://prntscr.com/s3rc9m > provide us with a username and password via the Private Content areahttp://prntscr.com/s5mao7 You can use any email for it.
If you do not know how to create FTP contact with your hosting provider, they will help you.
