You can also manually add the server once you download the app or open discord by itself:

https://discord.gg/qQVZSKJ ===> The Haven 18+ with a mental illness

If any of the above links do not work, you can manually add it once you're in the app.
If you'd like to add Discord WITHOUT adding the server first, go toDiscord - Free Voice and Text Chat for Gamers

If you guys are still having any trouble getting into the Discord, please don't hesitate to send me a DM or reply to me here!