sorry my English is Italian but I installed open slaed here http://www.openslaeditalia.helloweb.eu I created during installation admin account but then when I go into tells me error data.

There are perhaps data admin by default?

Hello!

I'm sorry, but I have not quite understood.
Looking administrator input?, default is: http://www.openslaeditalia.helloweb.eu/admin.php

Welcome. Seems like you've just forgotten your admin account data. There is no admin account by default after installation.
YOU create it yourself right when you first try to login to admin panel.
So, if you really created an admin account and now you can't log in (I understood you so), try to truncate a mysql table called {your_prefix}_admins and then go to http://www.openslaeditalia.helloweb.eu/admin.php. The system will ask you for creating a new admin account. Create it and log in ;)

Also you may have changed admin-file name during your installation. Check it inside config/config.php ($admin_file variable). If there is something different from "admin" try to change it so it's equal to.

Good luck!