Problem with duplicate product

Hi

We are using wpml with woocommerce plugin.

We have 3 language in site and we would like to make duplicate product
in other language but meanwhile duplicating product we are getting blank page and server error(internal server eror)

Also some time when duplicating products then it is getting process and process.

Do you anyone have thins kind of problem ?

Thanks.

https://wordpress.org/plugins/woocommerce-multilingual/