JS error when trying to display a field of type "BAT Calendar Unit Type Reference"

Hi,

I have an error when I try to display a node with a field of type "BAT Calendar Unit Type Reference".

I have configured the whole BAT data (when I go on the page admin/bat/calendar/1/dispo_salle_de_reunion I can see the calendar).
I have added a new field of type "BAT Calendar Unit Type Reference" in a content type, in order to display the calendar in my node template. When I go in the node edit page, I can see the calendar when i click on the node preview button.

Now, when i go on the node page, the calendar is not displayed and i have a JS error in the console :

JQuery is not defined.

This error comes from the file bat/modules/bat_calendar_reference/js/bat_calendar_reference.js.
When i look in the network trace of the browser i can see that this JS file is loaded after all the others JS files. I don't understand why Drupal load this JS file before all his dependent JS files like Jquery.js, Drupal.js, etc. Maybe there is an error in the module bat_calendar_reference : JS dependencies not loaded correctly ? In the node preview mode, the bat/modules/bat_calendar_reference/js/bat_calendar_reference.js is not loaded before all.

Thank you very much for your help.