src/de/steamwar/bungeecore/BungeeCore.java

@@ -156,7 +156,9 @@ public class BungeeCore extends Plugin {
         new LocalCommand();
         new SetLocaleCommand();
         new BuilderCloudCommand();
+
         new CalendarCommand();
+        new CalendarListener();
 
         // Punishment Commands:
         new PunishmentCommand("ban", Punishment.PunishmentType.Ban);