Fixed remove command failing to add reactions.

src/main/java/dev/logal/logalbot/commands/audio/Remove.java

@@ -17,7 +17,6 @@ package dev.logal.logalbot.commands.audio;
 import java.util.concurrent.TimeUnit;
 
 import com.sedmelluq.discord.lavaplayer.track.AudioTrack;
-import com.vdurmont.emoji.EmojiManager;
 
 import dev.logal.logalbot.audio.TrackScheduler;
 import dev.logal.logalbot.commands.Command;
@@ -26,6 +25,7 @@ import dev.logal.logalbot.commands.ReactionCallback;
 import dev.logal.logalbot.utils.AudioUtil;
 import dev.logal.logalbot.utils.CommandManager;
 import dev.logal.logalbot.utils.ReactionCallbackManager;
+import dev.logal.logalbot.utils.StringUtil;
 import dev.logal.logalbot.utils.TrackUtil;
 import dev.logal.logalbot.utils.VoiceChannelUtil;
 import net.dv8tion.jda.core.Permission;
@@ -69,7 +69,7 @@ public final class Remove implements Command {
                     break;
                 }
 
-                response.addReactionCallback(EmojiManager.getForAlias("" + trackNumber), new ReactionCallback() {
+                response.addReactionCallback(StringUtil.intToKeycapEmoji(trackNumber), new ReactionCallback() {
                     @Override
                     public final void run(final Member reactor, final long messageID) {
                         ReactionCallbackManager.unregisterMessage(messageID);

src/main/java/dev/logal/logalbot/utils/StringUtil.java

@@ -1,5 +1,8 @@
 package dev.logal.logalbot.utils;
 
+import com.vdurmont.emoji.Emoji;
+import com.vdurmont.emoji.EmojiManager;
+
 // Copyright 2019 Logan Fick
 
 // Licensed under the Apache License, Version 2.0 (the "License");
@@ -33,6 +36,50 @@ public final class StringUtil {
         return string.replaceAll("[`]", "'").replaceAll("[\r\n]", "");
     }
 
+    public static final Emoji intToKeycapEmoji(final int number) {
+        final String word;
+        switch (number) {
+        case 0:
+            word = "zero";
+            break;
+        case 1:
+            word = "one";
+            break;
+        case 2:
+            word = "two";
+            break;
+        case 3:
+            word = "three";
+            break;
+        case 4:
+            word = "four";
+            break;
+        case 5:
+            word = "five";
+            break;
+        case 6:
+            word = "six";
+            break;
+        case 7:
+            word = "seven";
+            break;
+        case 8:
+            word = "eight";
+            break;
+        case 9:
+            word = "nine";
+            break;
+        case 10:
+            word = "keycap_ten";
+            break;
+        default:
+            word = "hash";
+            break;
+        }
+
+        return EmojiManager.getForAlias(word);
+    }
+
     public static final String formatTime(final long milliseconds) {
         Checks.notNull(milliseconds, "Milliseconds");