Issue with variation while importing

Hi
I imported variable products via import/export from WP.
Then create an attribute colour and add on each products pages a colour variations,
I exported it after that and add some price and SKU in the table.
When I imported the csv file, all the colour variations disappeared from the product page.
In the wc-product-export-16-6-2022-1655359483119.csv, I can see all the variation created but not and the product pages.

link

Could you help me to resolve it

thanks
Dimitri