I knew about the site, but I could not access it either. I've been AFK a couple of days, and without tinkering with anything, it's all back to normal. Thank you for your help!

Thanks, everything is working well, now. I have no idea what happened but it's over.

Sorry for the late reply! Today I tried to enter the site and everything works flawlessly without any change on my end, so everything is ok now! Thanks for your help, dude!

Just occurred to me that I could try the clearnet domain on Tor, and it works well. I don't get what's up with my Firefox installation, it doesn't work in my profile nor in any new profiles.

Coud you post the .onion link, please? I have no way to enter the site to look for it.

Yeah, that's it. When I enter the old .to domain I get redirected to this one automatically, and it gives me the certificate error.