Hi again i have asked for help to my webmaster to solve the problem and he says that the component/module calls some files that are in administrator directory and that is the reason that the site shows the screen for user ans pass cause the directory is pass protected.
I hope this get solved soon cause unfortunately by now i have to choose the security of the backend. i think is a great component for people like me who needs to handle everything from the backend of joomla, this a very good option for google analitics.
i will stay tuned to see