Yuuup. My personal website has been inaccessible to a few friends, they thought my server was down. It turned out they had some blocklist (not related to AI) installed on their PiHole, and for whatever reason my website was on that list. It is, in fact, to this day, because my request to unblock it went completely unanswered. I still don't know why the website is on the list.

Go to the Adguard GitHub (or use the extension) and report it. And get all your friends to switch to Adguard extension and Adguard Home (Pi Hole alternative) as blockers.

Easylist and its sublist are notorious for being poorly maintained and ignoring issues opened against it. Adguard is much more active in maintaining its lists. Especially Adguard its language blocklists have much, much less breakage and missed ads than Easylist.

Perhaps it got hacked and was hosting malware without you being aware? They are pretty good at hiding it from the site owner (showing the original website to you, but not to others).