Invalid email in login ??

[FMH]

Hello,

I'm using rails 3.2 and ruby 1.9.3.

impossible to login with authlogic using email field, i have
validation error message (invalid email) but my email is valid.

def create
@user_session = UserSession.new(params[:user_session])
if @user_session.save
redirect_to_target_or_default root_url, :notice => "!!!!!!!!!!!"
else
render :action => 'new'
end
end