Mr problem

Fatal error: Uncaught Error: Call to undefined function getArtistNews() in /home/ugziki/domains/ugziki.co.ug/public_html/artist.php:165 Stack trace: #0 /home/ugziki/domains/ugziki.co.ug/public_html/router.php(56): include_once() #1 /home/ugziki/domains/ugziki.co.ug/public_html/router.php(11): route() #2 /home/ugziki/domains/ugziki.co.ug/public_html/routes.php(62): get() #3 {main} thrown in /home/ugziki/domains/ugziki.co.ug/public_html/artist.php on line 165