I navigated into SoleLuna.wdgt and opened SoleLuna.html in Safari. Safari's Activity window reports "file doesn't exist" for the following:

...SoleLuna.wdgt/Images/comune_left_clicked.png
...SoleLuna.wdgt/Images/comune_middle_clicked.png
...SoleLuna.wdgt/Images/comune_right_clicked.png
...SoleLuna.wdgt/Images/provincia_left_clicked.png
...SoleLuna.wdgt/Images/provincia_middle_clicked.png
...SoleLuna.wdgt/Images/provincia_right_clicked.png
...SoleLuna.wdgt/Images/regione_left_clicked.png
...SoleLuna.wdgt/Images/regione_middle_clicked.png
...SoleLuna.wdgt/Images/regione_right_clicked.png
...SoleLuna.wdgt/localizedStrings.js

and indeed they are absent from the contents of SoleLuna.wdgt

I file soprascritti mancano alla widget SoleLuna, ecco perche' (forse) non funziona