Hello,
Thank you for contacting Rank Math today.
I have logged in to your site and went to Rank Math > Sitemap Settings > Product Categories and enabled the “Include in Sitemaps” option.
Have a look at the below screenshot –

Next, I went to Rank Math > Titles & Meta > Product > Product Categories > Category Archives Robots Meta and marked it as Index.
Now, if you check your sitemap – https://casamediterraneasl.es/sitemap_index.xml, Product Categories are displaying fine.
Hope this helps.
Looking forward to helping you. Thank you.
Hi Kamlesh
Thanks for helping me to incorporate the product categories in Sitemap.
Have a nice day.
Best regards,
Mike.
Hello,
Glad to hear that the issue has been resolved.
If you have another question in the future, please feel free to create a new forum topic, and it will be our pleasure to assist you again.
Thank you.