Lester Chan on "[Plugin: WP-PostRatings] 2 error about Author and Publishdate"

Thanks for the grate plugin, I have errors
https://search.google.com/structured-data/testing-tool#url=http%3A%2F%2Fwww.myandroiddownloads.com%2F%25D8%25AA%25D8%25AD%25D9%2585%25D9%258A%25D9%2584-%25D9%2585%25D8%25AA%25D8%25AC%25D8%25B1-%25D8%25A7%25D8%25A8%25D8%25AA%25D9%2588%25D9%258A%25D8%25AF-download-aptoide-store%2F

Can you please advise?

https://wordpress.org/plugins/wp-postratings/

Sorry errors about author and publisher

I used the dev version from github.com.

it seems I have no errors. However, is it safe to use meta for author and publisher? and not displaying it? will Google penalty my site?

I am not sure.