boris.turk

I would like to add .si domain for whois lookup. Where can I do that? It seems ispapi-domainchecker.php does not support that tld. I go to WHMCS admin => Setup => Domain pricing => add .si tld. Now it appears in select list when I call ispapi-domainchecker.php in internet browser. But there is a problem. If I choose .si tld from the list, I get error (domain is not allowed). If I choose .com, then it works fine. Can you help?