Where can it be the error if I see this raw (%s alle %s )code instead of real datas? It happens in my language (italian), if I switch it to english the problem disappears.

The way to fix this is display the lang bit key and compare it with the English. You’ll see your translation isn’t right. 

Thank you very much @Adriano Faria, like many years ago, you solved my problems. Missing your online users today and latest topics, But got 'sticky notes' that is superbe.

The translation was obsolete (about 11 years), found and uploaded a version less old (2022) and everything worked as intented to do.

Again thank you, it's a pleasure to see you here.