It's because you have wrong translation. I am not sure who translated your theme but it has some critical issues, currently I fixed them on your site
2. Problem with icons because you have outdated plugin Product tabs for woocommerce. This plugin has outdated Fontawesome library. Write to author and ask to update it or disable plugin and use other.
You should also review your plugins and deactivate those which you don't use on site
Obrigado!