We do not have instructions on how to translate WooCommerce Multilingual plugin.
I cannot check your site to tell you for sure – I get Error 502 Ray ID: 6d73d1941b677809 • 2022-02-02 13:38:14 UTC Bad gateway
However, as per your screen, I admit that the sting you show is the widget title, if so, you need to replace the widget title manually and add two equal widgets and select the language in the widget options.