Some months break the calendar

Hi there,

Some of the months (March, May) do not pull the data through and the calendar widget breaks, however some months work fine (April). Please could I have some help working out why it is not working.

I can supply log in details if required.

Thank you.

https://www.stmaryscofe.org.uk/

https://www.ads-software.com/plugins/spider-event-calendar/