– Run test, it should be error and warning free.
– Now, open your website admin, if you have WordPress website, then go to homepage header, or whole website header, or homepage body section.
– Paste code into code section of header, body and footer (recommended in header).
– Update page
– Now copy page URL where you added the schema code, run schema test again with URL, it should be same error, and warning free.
Recommended Step
Go to search console and inspection the URL for reindexing.
You can use article or Blog post schema on your every blog post in website.
Learn more: Benefits of Using Schema Markup in Website