[Bug]: discord unlink command causes a server crash in 1.21.8

[jamez2128]

What happened?

When using the discord unlink command without arguments into the console, it crashes the entire server.

Steps to reproduces:
Step 1: Go into minecraft server console
Step 2: Type "discord unlink"
Step 3: See logs in the crash report section

Minecraft version: 1.21.8
Fabric Loader version: 0.17.2
Fabric API version: fabric-api-0.131.0+1.21.8.jar

Game Version

Other

What platform are you using?

Fabric

Platform version

0.17.2

Config File

(Configs unchanged except bot token and bot channel)

Crash report / Error log (if applicable)

discord unlink
[00:15:23] [Server thread/ERROR]: Encountered an unexpected exception
java.lang.ArrayIndexOutOfBoundsException: Index 0 out of bounds for length 0
        at knot/de.erdbeerbaerlp.dcintegration.common.minecraftCommands.UnlinkCommand.execute(UnlinkCommand.java:17) ~[de_erdbeerbaerlp_dcintegration_common-3.1.0-55dc154341f71a65.jar:?]
        at knot/net.minecraft.class_2170.handler$zzg000$dcintegration-fabric$execute(class_2170.java:689) ~[server-intermediary.jar:?]
        at knot/net.minecraft.class_2170.method_9249(class_2170.java) ~[server-intermediary.jar:?]
        at knot/net.minecraft.class_2170.method_44252(class_2170.java:336) ~[server-intermediary.jar:?]
        at knot/net.minecraft.class_3176.method_13941(class_3176.java:300) ~[server-intermediary.jar:?]
        at knot/net.minecraft.class_3176.method_61254(class_3176.java:282) ~[server-intermediary.jar:?]
        at knot/net.minecraft.server.MinecraftServer.method_3748(MinecraftServer.java:938) ~[server-intermediary.jar:?]
        at knot/net.minecraft.server.MinecraftServer.method_29741(MinecraftServer.java:707) ~[server-intermediary.jar:?]
        at knot/net.minecraft.server.MinecraftServer.method_29739(MinecraftServer.java:291) ~[server-intermediary.jar:?]
        at java.base/java.lang.Thread.run(Thread.java:1583) [?:?]
[00:15:23] [Server thread/ERROR]: This crash report has been saved to: D:\test_mc_server\smp\crash-reports\crash-2025-08-09_00.15.23-server.txt
[00:15:23] [Server thread/INFO]: Stopping server
[00:15:23] [Server thread/INFO]: Saving players
[00:15:23] [Server thread/INFO]: Saving worlds
[00:15:23] [Server thread/INFO]: Saving chunks for level 'ServerLevel[world]'/minecraft:overworld
[00:15:24] [Server thread/INFO]: Saving chunks for level 'ServerLevel[world]'/minecraft:the_nether
[00:15:24] [Server thread/INFO]: Saving chunks for level 'ServerLevel[world]'/minecraft:the_end
[00:15:24] [Server thread/INFO]: ThreadedAnvilChunkStorage (world): All chunks are saved
[00:15:24] [Server thread/INFO]: ThreadedAnvilChunkStorage (DIM-1): All chunks are saved
[00:15:24] [Server thread/INFO]: ThreadedAnvilChunkStorage (DIM1): All chunks are saved
[00:15:24] [Server thread/INFO]: ThreadedAnvilChunkStorage: All dimensions are saved
[00:15:24] [Server thread/INFO]: Unloading addons...
[00:15:24] [Server thread/INFO]: Unloaded addons
[00:15:24] [Server thread/INFO]: Unloading instance: net.dv8tion.jda.internal.JDAImpl@6077f896
[00:15:24] [Server thread/INFO]: Unloading listener: de.erdbeerbaerlp.dcintegration.common.DiscordEventListener@3eb4e23b
[00:15:24] [Server thread/INFO]: Waiting for JDA to shut-down...
[00:15:24] [Server thread/INFO]: JDA shut-down gracefully

Additional Information

No response