[Closed] CheckoutWC plugin translation issue

Background of the issue:
I’m using the CheckoutWC plugin on my website, and I’d like to translate the error messages that appear when the fields are empty, as well as the phone field name, which is also not being translated. However, I can’t find an option for this in the backend. URL: hidden link

Symptoms:
The error messages and the phone field name are not being translated, and I can't find an option to do this in the backend.

Questions:
How can I translate the error messages in the CheckoutWC plugin?
How can I translate the phone field name in the CheckoutWC plugin?