Shortcode icon dont show in different languages

I use Polylang for my site and have som problems with Shortcode Ultimate icons. It is the arrow on the right side.
On this page it works perfect http://www.ctc.se/product/ctc-ecoheat-400 but on this page http://www.ctclampo.fi/product/ctc-ecoheat-400-fi/ it looks like a problem with the font.
Anybody have a solution for this?

https://ww.wp.xz.cn/plugins/shortcodes-ultimate/