Hatom errors

Hi there,

I’m seeing a lot of hatom errors on google’s search console on ‘the events calendar’ pages. These are showing on both single event pages and on tag ‘archives’. The errors are:

Missing: author
Missing: updated

in some cases, also

Missing: entry-title

Here are some sample urls:

https://www.karlanorton.co.nz/performance/festival-opera-carmen-3/
https://www.karlanorton.co.nz/tag/karla-norton

Any idea what is causing this and how to fix it?

Thanks
Chris