Some text is not translated even though the language file is 100%

Hello everyone,

I am a newbie in working with Woocommerce,

I am using [Loco Translate] plugin to to replace the english text to the language I want, but even I’ve finished translated all the text at Loco the text won’t be translated

For example:

if I change the status of an order from [Pending] -> [Processing], I will receive this message:

“Order status changed from Pending payment to Processing.”

And I can not do anything to change this text into japanese

I have made sure that the site language has been set up to Japanese already.

Besides, when I change the order status of the order to [Canceled] I will received an email with the full English content

Can you guide me how to handle with them, please ?

Thank you