First, add https://. It is not possible for a professional forum to be http://.
I just checked OP's website and it seems like it redirects to HTTPS if the user doesn't specify it. I tried with force HTTPS disabled, no extension, and other stuff that might affect this and it still works like that. OP, is this intentional, or can users visit the unsecured version too? I failed to do that though, which should be better IMO since using an unsecured version would just turn people off.
I saw you run a marketing campaign to encourage people to create topics on your forum. Based on my experience, this kind of advertising is short-lived and will likely make your forum quality low overall. I've seen one or two forums do the same thing in the past, most of them failed to recoup their cost. Judging from the lack of activity on your website, I don't think it is working either. Why don't you work on the niche of your website first, to increase the chance to attract users instead of airdrop hunters?