Well, when I click it works for me, so I’m not sure - usually if that happens it’s because your discord is protecting you from an adult server somehow.
https://discord.gg/helmetfox is our servers custom invite link, if that doesn’t work it’s almost certainly on your end.
You must have an email attached to your account to join the server too, if you’re just set to be completely anonymous with no email it won’t let you join.