Fix fatal bugs

Author: JSH32

pom.xml

@@ -6,7 +6,7 @@
 
     <groupId>com.github.riku32</groupId>
     <artifactId>DiscordLink</artifactId>
-    <version>1.1</version>
+    <version>1.2</version>
     <packaging>jar</packaging>
 
     <name>DiscordLink</name>

src/main/java/com/github/riku32/discordlink/discord/Bot.java

@@ -86,14 +86,15 @@ public Bot(DiscordLink plugin, String token, String guildID, String ownerID, Str
         try {
             commandsBuilder.build(jda, "com.github.riku32.discordlink.discord.commands");
 
-            // Delete botcommands framework listener
-            
-            // TODO: Remove button listener without error
-            // jda.getEventManager().getRegisteredListeners().removeIf(listener -> listener instanceof ButtonListener);
         } catch (IOException exception) {
             plugin.getLogger().severe("Unable to register/update slash commands");
             exception.printStackTrace();
         }
+        
+        // Delete botcommands framework listener
+        for (Object listener : jda.getRegisteredListeners())
+            if (listener instanceof ButtonListener)
+                jda.removeEventListener(listener);
     }
 
     public void shutdown() {