Language translating not working properly.

[Mukta_92]

This is my Shopify store in the Japanese language -  https://urbandnt.com/ja/collections/t-shirts/products/471685-blauer-blauer-women-t-shirt?variant=452...

but at the bottom of the "related product" section, it is showing in the English language. When I click any of the products on my site it will be English.  But  I need the entire site in Japanese.