Cannot get SeaFish PRO theme THE SAME CONTENT as DEMO

I bought a life time Seafish PRO WordPress Theme.

I already imported unzipped and activated successfully the theme, then also the import-export plugin, imported JSON and XML , BUT NO DEMO CONTENT available.

The website still looks a default one.

The WordPress Importer give us a better idea of what is not working:

I get a lot of "Invalid post type" importing the XML :

The slider and other features are not working, giving me a fully different website appearance respect to the SeaFish PRO DEMO

Do the XML is BROKEN ??

Please help.

Import WordPress
Media “Gallery1” already exists.
Media “Gallery2” already exists.
Media “Gallery3” already exists.
Media “Gallery4” already exists.
Media “Gallery5” already exists.
Media “Gallery6” already exists.
Media “Gallery7” already exists.
Media “Gallery8” already exists.
Media “Gallery9” already exists.
Media “Gallery10” already exists.
Media “Gallery11” already exists.
Media “Gallery12” already exists.
Media “Gallery13” already exists.
Media “Gallery1” already exists.
Media “Gallery2” already exists.
Media “Gallery3” already exists.
Media “Gallery4” already exists.
Media “Gallery5” already exists.
Media “Gallery6” already exists.
Media “Gallery7” already exists.
Media “Gallery8” already exists.
Media “Gallery9” already exists.
Media “Gallery10” already exists.
Media “Gallery11” already exists.
Media “Gallery12” already exists.
Media “Gallery13” already exists.
Media “Blog4” already exists.
Media “Blog5” already exists.
Media “Blog1” already exists.
Media “Blog3” already exists.
Media “Blog2” already exists.
Media “Img-6” already exists.
Media “Img-2” already exists.
Media “Img-11” already exists.
Media “Img-10” already exists.
Media “Img-7” already exists.
Media “Img-6” already exists.
Media “Img-5” already exists.
Media “Img-3” already exists.
Media “Img-4” already exists.
Failed to import “NextGEN Basic Thumbnails”: Invalid post type display_type
Failed to import “NextGEN Basic Slideshow”: Invalid post type display_type
Failed to import “NextGEN Basic ImageBrowser”: Invalid post type display_type
Failed to import “NextGEN Basic SinglePic”: Invalid post type display_type
Failed to import “NextGEN Basic TagCloud”: Invalid post type display_type
Media “Img-8” already exists.
Media “Img-9” already exists.
Media “Gallery1” already exists.
Media “Gallery2” already exists.
Media “Gallery3” already exists.
Media “Gallery4” already exists.
Media “Gallery5” already exists.
Media “Gallery6” already exists.
Media “Gallery7” already exists.
Media “Gallery8” already exists.
Media “Gallery9” already exists.
Media “Gallery10” already exists.
Media “Gallery11” already exists.
Media “Gallery12” already exists.
Media “Gallery13” already exists.
Failed to import “NextGEN Basic Compact Album”: Invalid post type display_type
Failed to import “NextGEN Basic Extended Album”: Invalid post type display_type
Failed to import “Untitled ngg_gallery”: Invalid post type ngg_gallery
Failed to import “Untitled ngg_pictures”: Invalid post type ngg_pictures
Failed to import “Untitled ngg_pictures”: Invalid post type ngg_pictures
Failed to import “Untitled ngg_gallery”: Invalid post type ngg_gallery
Failed to import “Untitled ngg_pictures”: Invalid post type ngg_pictures
Failed to import “Untitled ngg_pictures”: Invalid post type ngg_pictures
Failed to import “Untitled ngg_pictures”: Invalid post type ngg_pictures
Failed to import “Untitled ngg_pictures”: Invalid post type ngg_pictures
Failed to import “Untitled ngg_pictures”: Invalid post type ngg_pictures
Failed to import “Untitled ngg_pictures”: Invalid post type ngg_pictures
Menu item skipped due to invalid menu slug: menu-1
Menu item skipped due to invalid menu slug: menu-1
Menu item skipped due to invalid menu slug: menu-1
Menu item skipped due to invalid menu slug: menu-1
Menu item skipped due to invalid menu slug: menu-1
Menu item skipped due to invalid menu slug: menu-1
Menu item skipped due to invalid menu slug: menu-1
Menu item skipped due to invalid menu slug: menu-1
Failed to import “Untitled ngg_pictures”: Invalid post type ngg_pictures
Failed to import “Untitled ngg_pictures”: Invalid post type ngg_pictures
Failed to import “Untitled ngg_pictures”: Invalid post type ngg_pictures
Failed to import “Untitled ngg_pictures”: Invalid post type ngg_pictures
Failed to import “Untitled ngg_pictures”: Invalid post type ngg_pictures
Failed to import “Untitled ngg_pictures”: Invalid post type ngg_pictures
Failed to import “Untitled ngg_pictures”: Invalid post type ngg_pictures
Failed to import “Untitled ngg_pictures”: Invalid post type ngg_pictures
Failed to import “Untitled ngg_pictures”: Invalid post type ngg_pictures
Failed to import “Untitled ngg_pictures”: Invalid post type ngg_pictures
Failed to import “Untitled ngg_pictures”: Invalid post type ngg_pictures
Failed to import “Untitled ngg_pictures”: Invalid post type ngg_pictures
Page “Blog” already exists.
Page “Contact” already exists.
Page “Shop” already exists.
Page “My Account” already exists.
Page “Cart” already exists.
Page “Checkout” already exists.
Post “Soft Shell Crayfish” already exists.
Page “Piscary” already exists.
Failed to import “RIVER SOCKEYE SALMON”: Invalid post type product
Post “Mackerel BBQ” already exists.
Post “Tiger Prawns Chilli And Garlic” already exists.
Post “Origins Of Sushi” already exists.
Post “Fried Lemon Sole And Lemon Butter” already exists.
Failed to import “SHRIMP SCAMPI”: Invalid post type product
Failed to import “COLOSSAL LOBSTER TAILS”: Invalid post type product
Failed to import “SMOKED MUSSELS”: Invalid post type product
Failed to import “RIVER KING SALMON”: Invalid post type product
Failed to import “ALASKAN BLACK COD FILLET”: Invalid post type product
Failed to import “KING SALMON”: Invalid post type product
Failed to import “FRESH WHOLE GOLDEN TROUT”: Invalid post type product
Failed to import “FRESH SMOKED SALMON”: Invalid post type product
Failed to import “KING SALMON STEAKS”: Invalid post type product
Failed to import “SMOKED SALMON”: Invalid post type product
All done. Have fun!

Remember to update the passwords and roles of imported users.