Domain parked but not masking

My godaddy domain is parked here, and typing my domain name takes me to my site here, but the site isn’t masked. it still comes up with my .000webhost.com site. It does work if I type www.mydomain.com, but not if I just type mydomain.com. What am I doing wrong?

Are you using WordPress or a script that you need to define your custom domain within?

https://www.000webhost.com/t/updating-your-wordpress-url-from-yoursite-000webhostapp-com-to-a-custom-domain-via-database/118666