New hosting - Cannot login in

Hi,i i have uploaded and configured the invoiceplane,but neither it din’t asked for username or password!
Now when i’m at the logon screen,i cannot start because i don’t know my username or password.
Also i did it with a blanc username and password.
So it;s says
here is no account registered with this Email address.

Did you copied the database? If yes take a look at the database and look if there are any users registered. You should be able to see the email.