Uncaught SyntaxError: Unexpected end of JSON input

[filhocf]

Hi

I got your pck this week and started a strange error. In server side, I haven't any error, but in the dev console of browser, I find the follow error in to javascript.

I followed all instructions, as I did some months ago, and when I enter in the calendar, and I try to add a new CalDAV entry, I have nothing. I attached two pics, one with old version and other with new version of calendar.

Can you give me some light about the problem?

Javascript error when click in "+", in the left bottom corner.

Old version of fasterit/roundcube_calendar working.