Hatom error (updated and author) and schema.org error (person homelocation)

Hello ! I'm searching some help to fix errors in Google Search Console. I have 4 errors in "hatom (balisage : microformats.org)" with missing required field author and updated. I have 1 error in "Person (balisage : schema.org)" with missing required field homelocation. All this errors seem to be in the Html code for all my page in my blog but I don't understand how I can fix it and why there are this errors. I haven't change anything to make this bug happen. Sorry for my english I'm french and I'm not good in code. Thank you so much for your help ! Mathilde