Hello Salvatore,
I am really sorry for the delay of this reply as it is a weekend for us here.
I have tried to access your FTP, it seems like you didn't set the Joomla root folder to let us view it, check my screenshot :
http://screencast.com/t/yuy7Aw7CutEj (Or you try consult this with your webhosting provider and see how it goes?)
Regarding with your Calendar can't load properly :
I have checked half way in your plugin manager, it seems like this
System - ScriptsDown plugin causing the Calendar can't load properly, but I'm not sure that when i disabled it, is it will causing your site another problem. What i tested just now is disable this plugin then need to cleanup your Joomla cache then reload your frontpage, then the calendar is load properly. After i test second time, ready to cleanup your Joomla cache then i hitting this :
(but i have help you enable back the plugin)
Resource Limit Is Reached
The website is temporarily unable to service your request as it exceeded resource limit. Please try again later.
Apache Server at http://www.sharinglook.com Port 80
Can you disabled it then cleanup your Joomla cache then reload the frontpage and see the Calendar is it loading okay? Please advise.