Hi Stefano,
thanks for your answer. I have set file permission (755) of directories and file by filezilla, but without success; you mean restore file permission by Aruba panel through this tool? (please see screenshot image here: http://www.festadelpesce.org/aruba-panel.jpg).
If i restore all files/directories permission by usingthat tool can i have other problems with the website?
Thanks,
bye!