I am having the same problem on our website. Viewing a calendar (as a month) starts OK, but attempting to navigate to the next or previous month shows the following error:
Something went wrong while fetching events.
The request status is: 200
The error thrown was: SyntaxError: Unexpected token <
Click here for technical details
The “Click here for technical details” popped up a subwindow that contained – I’m guessing – the HTML response. Running that response through an HTML validator showed no XML/HTML problems.
This can be reproduced by going to this page – https://parish.saintbrendan.org/news-and-events/events-calendar/ and clicking to the next or previous month.
Is there a solution for this?