OpeningHours schema not valid/error

Hello,

Thank you for contacting Rank Math and bringing your concern to our attention. I’m sorry for the delay and for any inconvenience this issue may have caused you.

I’ve checked the URL you have provided, and it seems that there’s no such error. You can use this tool recommended by Google: https://search.google.com/test/rich-results.

The Structured Data Testing Tool is being deprecated. For validating structured data for Google Search, Google now recommends using the Rich Results Test for more accurate and actionable feedback.

However, to fix this warning in the Structured Data Testing Tool, you have to choose a relevant business category for your business inside the organization tab in Rank Math > Titles & Meta > Local SEO:

Choose something other than Organization in the dropdown.

I hope that helps. Thank you, and looking forward to your update.