I have a problem adding multiple dates on my production server.
I tried to re-upload the file and reset the calendar but the problem stills.
On my dev server it looks ok, but when I try to add multiple days to the calendar the 5th day added is broken: it becomes uneditable on backend and on frontend the js returns the error "hoursDef is undefined".
I've noted that if I add 4 days at a time it works, but if I try adding 5 days the 5th day returns the error.
The editing takes a little bit of time so I thought about a timeout but execution_time_limit is set to 120 and it should be enough.
Does the plugin depend on any particualr function, library or php version?
Any suggestion on how to debug or fix it?