Google Structured Data Testing Tool

Hi,

I am getting the below errors from the Google Structured Data Testing Tool when I test my blog https://www.propertyresolved.com.au for errors. It is the same set of errors/warnings that is being returned for all posts:

Errors:
– A value for the author field is required.
– A value for the image field is required.
– A value for the publisher field is required.

Warnings:
– The dateModified field is recommended. Please provide a value if available.
– The mainEntityOfPage field is recommended. Please provide a value if available.

To see the exact report produced by google, please go to:

https://search.google.com/structured-data/testing-tool/u/0/#url=http%3A%2F%2Fwww.propertyresolved.com.au%2F

Your assistance in this matter is hugely appreciated.

Thank you,

Dmitry