Hi! I have try to importthe demo data, but these errors appear. The page theme does not show the menus and other items.Please Help me.

Import WordPress
Failed to import product_visibility exclude-from-catalog
Failed to import product_visibility exclude-from-search
Failed to import product_type external
Failed to import product_visibility featured
Failed to import product_type grouped
Failed to import product_visibility outofstock
Failed to import product_visibility rated-1
Failed to import product_visibility rated-2
Failed to import product_visibility rated-3
Failed to import product_visibility rated-4
Failed to import product_visibility rated-5
Failed to import product_type simple
Failed to import product_cat Uncategorized
Failed to import product_type variable