ACF START AND END DATE

Hi, very cool plugin, thank you for it! I’m trying to use it in an all-events site where events are users submitted through a form. I need some help to reach:
0) event start date and event date should be automatically those of my ACF fields “inizio evento” and “fine evento” of EVENTI group fields. I tried the code suggested in the plugin instructions but nothing happens. Not so skilled with code, could you suggest the right code to add? The dates actually displayed in the most recent 2 events are manually added. ( event one and event two )

0) A long event https://ventieventi.it/evento/calendario-camper/  (from 02 to 16 September) is not correctly displayed with all circles in all 15 days in the widget view, added in the sidebar.

1) the “Choose view” text is not translatable. I changed other text with Loco translate plugin but that one doesn’t change.

2) Would like to display only the hour and the text “Evento” with link to the event, not the title, as if it is too long the entire calendar layout becomes odd.

Thank you so much for your help.

See here:
https://ventieventi.it/evento/calendario-camper/  
and the big calendar here: https://ventieventi.it/calendario-eventi/
and this page/screenshot of the layout I want to reach