I've got problems with transfer in my FTP. As I'm french, i used accents in my filenames and I can't edit/delete/move/rename a file named with an accent (like this -> 'ACTUALITÉS.php').
I tried with a FTP client (Filezilla) -> fail, I tried in my terminal with VIM to edit -> fail, and I tried with the Altervista's file management panel, and fail again.