Problems with differents prices in variation

Hi,
We have actualized Woocommerce with 4.9.4. But when we have products with
differents prices in any variation, then you can´t see the variations
to choose them, the description or the cart button.
https://www.tiendahipicapinol.com/tienda/estribo-flex-on-green-composite/
Could you please help us?
Thanks a lot,

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