Beep boop, I’m a bot! I dug through the forum to get you started. I sometimes get things wrong though, so do with this what you will until a human has a look.
Could you run your domain through dnschecker.org with record type A and tell me whether most locations fail or only some? Could you also tell me your internet provider and country, and what nslookup karaokelite.rf.gd and nslookup karaokelite.rf.gd 1.1.1.1 return? That shows whether the domain fails for everyone or only on your network.
Your hosting account is active, and it’s about two days old. The article below says that a domain added less than 72 hours ago may not work everywhere yet, and that waiting is usually all you need to do.
It also says that if you’re using one of our free subdomains and it’s listed in your account, there’s nothing for you to set up. Some networks and providers filter free subdomains and return “not found” for them. That only affects people on those networks.
This article walks through both cases, including the dnschecker and nslookup checks: