What kind of problems do you experience? Your website seems to be working fine from here. Note that it can take up to 72 hours for nameservers changes to be visible everywhere.
Yes I do agree with @Admin.
Your website is working fine from here, you just have to wait till DNS propagation takes effect.
However I noticed another error, I am not sure if you are getting it too, but atleast I am getting it. It seems like CSS is broken and only ‘skeleton’ of your site is displayed and the ‘skin’ is gone.
I just wanted to that in case it is a glitch for everyone.
Have a nice day,