Since it's a little bit outdated I decided to make my own discord plugin and share it with you guys

It's a very simple plugin but I decided to make it anyways <3 Everything within this plugin is configurable within the config, soon I will add in commands in game to change it. You can also set the sound to whatever sound you want.
Here is all the sounds you guys can use for this plugin
https://hub.spigotmc.org/javadocs/bukkit/org/bukkit/Sound.html
- Commands:
- /discord
- /discord reload
- Permissions:
- /discord - discord.use
- /discord reload - discord.reload
Config.yml
Code (Text):
########################################################################
# DiscordPlugin 1.5 #
########################################################################
#A list of supported sounds can be found here: https://hub.spigotmc.org/javadocs/bukkit/org/bukkit/Sound.html
Prefix: '&7[&c&lDiscord&7] '
Sound: ENTITY_ENDERMAN_TELEPORT
Message: '&eClick this link below to join our discord'
Link: '&edefault'
Permission: '&cYou do not have permission to do that'