caption not displaying

Hello!

I purchased the Gallery Bank pro plugin and none of my caption is displaying.
I am using version 3.8.7
I tried inserting all types of galleries to see if it was a specific problem but on none of the format the caption appears.

Could someone please help me?

The website is http://www.terredalizes.fr and the page with the test galleries is http://www.terredalizes.fr/portes-de-chambre-dhotel/

Thank you in advance for your support,

Best,

Pauline

https://ww.wp.xz.cn/plugins/gallery-bank/