Hello,
I see that you installed Polylang plugin to create multilanguage site but if you want to use Polylang for the Products you need to install an additional plugin https://polylang.pro/downloads/polylang-for-woocommerce/
Could you, please, finish the installation of all the required plugins if you plan WooCommerce multilanguage site? Reply back once you install that and we’ll proceed with the issues fixing.
Regards