impossible to login and switch to English

After installing, I got: Plugin not fully activated yet / Completa l’attivazione del plugin
First of all: why showing 2 languages, if you know that the wordpress site isn’t in Italian.
When pressing active, it goes to a website where there is a button to switch to ‘inglese’…I assume that is English.
Anyway, I pressed ‘inglese’…tada…nothing happens.
I entered my email address to ‘Register your copy of Social2Blog’,and I press “registra”.
No matter what I enter there, the message ‘Your blog not exist” keeps popping up.

So it’s a useless plugin.