Double URL in my shop

[VB74]

Hello everyone,

I realized via Google Search Console that I had pages with double URL addresses. That is, products in my store that are accessible via two different URLs.

I don't understand why this is happening.
This one is indexed in Google: https://casa-bandera.com/fr/boutique-livres-cuisine-italienne/quatre-saisons-saveurs-italiennes-1/ebook-qs1-francais-pdf
This one should be the indexed URL (it's the URL that's generated when the product is accessed via my store tree): https://casa-bandera.com/fr/boutique-livres-cuisine-italienne/ebook-qs1-francais-pdf
You can see that there's a "/quatre-saisons-saveurs-italiennes-1/" inexplicably interposed.

Thanks in advance for your help.