It seems that the French Allevents language file is no longer included in Joomla 3.7. In order to correct, we request you to upload the FR pack language:
All will be completely corrrected in ALlEvents 3.4.5
There are two possibilities :
- If you have the calendar at ICS format and you want get back all the events ==> CS file import will be the solution
- If you have the calendar at ICS format and you just want display the events ==> integration of the calendars to display in the FullCalendar display.