It's just that time of year since they moved to the cloud hosted version of the forum where it goes down as they never wanted to keep it (why else would it be only paid for a year at a time?). Also with the mess that arose last year & going "source available", I highly doubt the person who seemed to behind paying it the 2 prior times I can think of it going down is going to have the corporate credit card to resolve it.
A shame in some respects but since they'd already broken all of the links when they moved to the cloud version of the forum along with seemingly losing a load of attachments & also the waybackmachine only having a partial scraped copy of it (as the 2013 rush job was massively incomplete nor was it ever re-done to get what was missing after the sale kept it initially going) it's usefulness was already lost.