404 errors on /events page

Hi there, I am having issues with 404 errors on the events page – I have tried following the support steps to change permalink, and added code to functions.php but still no luck – link below shows debugged page.

http://www.positivechanges.org.nz/events/?tribe_query_debug=true

Thanks for your help.

https://ww.wp.xz.cn/plugins/the-events-calendar/