Members can't register

My apologies in advance if the answer is posted somewhere, I searched and couldn't find it.

I started a new forum and when people go to register they are confronted with the required contact fields of Facebook and Twitter. I know many people use those sites and for them it isn't an issue. However I have members who do not use either of them. I personally don't use any social media beyond my forum so see no reason why someone else should be forced into it. I have searched the ACP and just can't find how to turn those two fields off. Help would be greatly appreciated.
My forum is http://hedwigshollow.forumotion.com/

We do not have a login for Twitter? Could you post a screenshot of what guests see when they try to register?

SLGray thanks so much for your reply. While was waiting I found the problem. In the ACP->Users->Profiles->Contact Fields I needed to go in and turn of necessarily filled. I had turned off all the other ones so didn't realize that it was the problem. Thanks again.

Thanks for posting the solution. You were referring to the necessary filled profile fields which are added to the register page.