src/de/steamwar/bungeecore/ErrorLogger.java

@@ -85,13 +85,9 @@ public class ErrorLogger extends Handler {
 
     static {
         List<String> contains = new ArrayList<>();
-        contains.add("ServerConnector");
-        contains.add("InitialHandler");
-        contains.add("UpstreamBridge");
-        contains.add("DownstreamBridge");
-        contains.add(" took ");
-        contains.add("No client connected for pending server!");
         contains.add("Error authenticating ");
+        contains.add("read timed out");
+        contains.add("Connection reset by peer");
         ignoreContains = Collections.unmodifiableList(contains);
     }
 }

src/de/steamwar/bungeecore/bot/SteamwarDiscordBot.java

@@ -35,6 +35,7 @@ import net.dv8tion.jda.api.JDABuilder;
 import net.dv8tion.jda.api.OnlineStatus;
 import net.dv8tion.jda.api.entities.Activity;
 import net.dv8tion.jda.api.entities.Guild;
+import net.dv8tion.jda.api.exceptions.ErrorResponseException;
 import net.dv8tion.jda.api.hooks.ListenerAdapter;
 import net.dv8tion.jda.api.requests.restaction.CommandListUpdateAction;
 import net.dv8tion.jda.api.utils.MemberCachePolicy;
@@ -93,9 +94,13 @@ public class SteamwarDiscordBot {
             EventManager.update();
             SchematicsManager.update();
             ProxyServer.getInstance().getScheduler().schedule(BungeeCore.get(), () -> {
-                activity();
-                EventManager.update();
-                SchematicsManager.update();
+                try {
+                    activity();
+                    EventManager.update();
+                    SchematicsManager.update();
+                } catch (ErrorResponseException e) {
+                    //ignored
+                }
             }, 30, 30, TimeUnit.SECONDS);
             DiscordRolesMessage.sendMessage();
             DiscordRulesMessage.sendMessage();