Google Search Console Issues

Why do we have ‘Review’ and ‘AggregateRating’ warnings on the Google Rich Results Test Tool?

My Google Search Console (GSC) tells me there is “Failed indexing”. Is this indexing issue related to Schema Plus? How can I resolve it?

Should I use one domain or multiple domains? What is good for my schema and SEO in general?

How can I disable the outdated theme schema myself?

I have Reviews and AggregateRating warnings. Should I worry?

Is it necessary to report to Google that the outdated schema has been removed from your theme files on your Shopify store?