Website with ww instead of www

I have recently got inquiry for site audit. So I tried to explore his site. But site was not available. Then I have checked sites index status with site: website. Found site is not index. Further more I have typed his domain and search. Found IG page at 1st position and in 2nd position I found his site with ww instead of www. It is my first time to see any site with ww. Then I have opened his site. Site is live and everything is working smooth inside his website. Only thing that was annoying was in the Chrome Tab I can see Text appeared as "The page you requested cannot..."

What might be the issue ?
How can the problem be solved ?

website is: ww.thebuddhistmala.com

Thanks.

In DNS settings of domain change A record from ww to www.

Its better practice instead of using A record to use CNAME and redirect user from www to non-www.

This can be found under domain registrars settings and/or under hosting control panel.

www is just a convention. problem is everyone assumes 3 w so, just like you did, whoever types in www will not go through.

Here's what I'd do.

Decide on a canonical host name first. Either make it example.com or www.example.com. Decide which one first

Then add a 301 to the .htaccess file redirecting every other host to the canonical one.

This fixes the ww automatically