After DNS redirect my chat and forums wont work

By SuperS

Hi!

I have installed the Elgg Network and at first it worked great!

That was when I used the original adress of my hoster as Elgg Adress.

But now I have changed my adress with c-name to an us.to subdomain and now it always gives me the following error message when trying to open my vanillaforum (which worked before):

Fatal error: Call to undefined function curl_init() in /users/supers/www/elgg/mod/vanillaforum/vanilla/library/People/People.Class.Authenticator.php on line 411

 And when I try to start the chat it keeps telling me that the chat is loading, but it never completes this process....

To successfully redirect I had to instert my new us.to Url into Elgg (through my administration page), shouldn't I have done that? Without that the dns redirect didn't work...

So does anyone know how to resolve that problem?

I would be very happy if someone could help me!