Problems with new installation (2.3.3)

I have just installed MyCalendar and am experiencing the following problems (which may be linked):

1. The event details pop-ups are always popped up, even on first loading the calendar page, and cannot be closed. (see http://www.ricardito.co.uk/?page_id=4 to demonstrate)

2. In the MyCalendar Script Editor page, there are several notices like this:

There have been updates to the calendar view scripts. Compare your scripts with latest installed version of My Calendar.

There have been updates to the list view scripts. Compare your scripts with latest installed version of My Calendar.

There have been updates to the mini view scripts. Compare your scripts with latest installed version of My Calendar.

There have been updates to the AJAX scripts. Compare your scripts with latest installed version of My Calendar.

Clicking the first one (as an example) shows the following:

Comparing scripts with latest installed version of My Calendar
Current (in use) Latest (from plugin)
$(function() {
$(“.calendar-event”).children().not(“.event-title”).hide();
$(document).on(“click”, “.calendar-event .event-title”,
function(e) {
e.preventDefault(); // remove line if you are using a link in the event title
$(this).parent().children().not(“.event-title”).toggle();
});
$(document).on(“click”, “.calendar-event .close”,
function(e) {
e.preventDefault();
$(this).parent().toggle();
});
});

I am a newcomer to this, so any advice gratefully received!

https://wordpress.org/plugins/my-calendar/