Why can't i change website domain?
open your Command Prompt then type
nslookup <cname link from replit>
Under 'Non-authoritative answer:' You will see an IP Address.
Make a new A-Record in the DNS managemant. Leave the name blank and set the target to the IP Address what you see in the Command Prompt. This is what you should have:
Save it and link the domain WITHOUT www.
Did u do what the repl says?
Click the URL right there and click the pen/pencil and follow those instructions. Hope this helps!