The telegram icon is not displayed

image
Hello. The telegram icon is not displayed in social menu.
What version of font-awesome is used in the theme?
Added the following code to the custom css
.social-widget a [href * = “https://telegram.me/ecoportal”] :: before,
.social-navigation li a [href * = “https://telegram.me/ecoportal”] :: before {
content: “\ f2c6”; }
image
Please help.
This my site https://eco-portal.info/