We are aware of the issue of the forums not loading properly. We were chatting with an admin about updating the site to HTTPS and it looks like he jump started the process. The main site should load fine, but the forums are currently broken.
This is most certainly off-topic, but let me already voice my appreciation about long-awaited HTTPS! I am extremely happy to hear something is happening in this regard, even though things didn't go smoothly at first. And yes, I realize things might not be ready yet, I just wanted to voice my appreciation.