This issue has been present for about 2 weeks, but I couldn't say if it was related to any sort of update, since I access the site so infrequently.
I did just now try loading the lodestone with a private browser, and it appears to load just fine, bringing into question what is different between the two. The only extension I have is add block plus, which is running on both the private window and on the regular window. I tried turning off add block plus and hitting the button that says "main site" upon which the page refreshes, attempts to go to the main site, then redirects back to the error message. The option to accept or decline cookies came up again, and I hit accept, but the same thing occurs.

I use bitdefender antivirus, but as stated, didn't matter if that was running or not. I don't have a firewall or a vpn.