Shop categories won’t display in spite of setting them up as default view

Hi!
I have created a customized online shop displaying my product categories: https://palomafernandezmentoraemocional.com/escuela-online/
But, when I click on the categories, the corresponding product category page does not display the products, although the url of the categories is properly displayed. Is this a bug? How can I solve it? Thank you for your help!
Gladys

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