No import/export button in Misc tab

I’ve been trying to export and import an Envira gallery from https://megraftermillinery.com.au/gallery/

to:

https://test.gowebgomobile.com/archives/

I’ve done it with WP import plugin as couldn’t see any import/export button in Envira > settings > Misc

Problem is I can’t get the gallery to display.

I can see in the Envira back end (although the images appear as a broken icon but when I click on the image, it is there).

I am using Divi theme. There are 82 images so it would be a big help to be able to achieve an import/export.

Thanks

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