Adding the review schema to a blog post using snippet.
Testing with Google’s structured data testing tool: https://search.google.com/structured-data/testing-tool/
Getting an error: Thing is not a known valid target type for the itemReviewed property.
Here’s my post in question: https://www.pro-1.com/reviews/wedding-dj-reviews/giants-ridge-chalet-wedding-dj-review/
Please advise.