Rachel's Haven is now operating on a secured domain, that's what the little "s" in https stands for. Likely you also see a little padlock icon now when you visit the site. However, some are having issues that can mostly be solved by doing the following:
1. Clear your Browser's Cache
2. Delete Rachel's Haven cookies from your browser. There are three of them and should be named rh-forum, rh-gallery, and rh-library. Everyone will have rh-forum, but you will only have the other two if you have visited those sections