Apital theme giving error in wordpress

Fatal error: Call to undefined function fw() in /home/gorichitti/public_html/delta.exchange/wp-content/themes/apital-parent/inc/includes/sub-includes/featured-content.php on line 440

Hello, to get faster and specialized support for the theme, please contact the theme author directly, using one of the methods descibed in this article: https://help.market.envato.com/hc/en-us/articles/203039054-How-to-Contact-an-Author

If you do not know the name of the author, just perform a search on themeforest by the theme name and you will see the author name below the theme name.

All the best!