net price label in hebrew turns gibberish

hi,
I have an issue when changing “Sale Price Label (Product Page)” to hebrew.
It turns to gibberish on the product page.
It only happens on variations products.

setting:
https://ibb.co/C8ZdtWj

product page:
https://ibb.co/vLhNgQ1

In addition,
How can I style the product page add to cart buttons?
I tried some CSS but had trouble making it look good or similar to the website style.

thanks!