Font awesome not working

Cant seem to add font awesome icons to widgets nor pages is just not showing up after imputing short code

Hello @24tegah,

Please provide a link to your website and describe what exactly you are trying to achieve.

Kind Regards, Roman.

www.georgnakanda.com
Please check the footer am trying to input phone and mail icons beside the phone no and email text

Hello @24tegah,

I have just checked your website but I didn’t see any phone number or email in your footer. Do you still need help?

Kind Regards, Roman.