Product title disappears

Hey there,
I have the following issue:

On preload products, the product′s title appear normally, see here:
https://www.triptailorsgreece.com/product/classic-wooden-chair

However, when I create my own and add an image, the title disappears:
https://www.triptailorsgreece.com/es/product/acropolis-visita-en-grupo-semiprivado-max-8-personas/

The page I need help with: [log in to see the link]