New Post: Can´t activate user registration

We had upgraded nb_store 2.3.4 to 2.3.5 on DNN 7.

Now in nb_store back office we tried to activate user registration, in orders -> cliente, clicking unlock button -> upgrade -> return -> exit.

Then, when logging with that new user, he can´t login: "You are not currently authorized to login to this site".

With nb_store 2.34 activating new users wasn´t a problem. Doing a important project, help please.

Thanks in advance