cannot be subbed if you have a bane placed

nations can only have 1 bane placed at a time

src/engine/objects/Bane.java

@@ -215,12 +215,6 @@ public final class Bane {
 
         Vector3fImmutable localLocation = ZoneManager.worldToLocal(player.getLoc(), cityZone);
 
-        if (localLocation == null) {
-            PlaceAssetMsg.sendPlaceAssetError(player.getClientConnection(), 1, "A Serious error has occurred. Please post details for to ensure transaction integrity");
-            Logger.info("Failed to Convert World coordinates to local zone coordinates");
-            return false;
-        }
-
         Building stone = DbManager.BuildingQueries.CREATE_BUILDING(
                 cityZone.getObjectUUID(), player.getObjectUUID(), blueprint.getName(), blueprint.getBlueprintUUID(),
                 localLocation, 1.0f, blueprint.getMaxHealth(rank), ProtectionState.PROTECTED, 0, rank,
@@ -231,6 +225,12 @@ public final class Bane {
             return false;
         }
 
+        for(Guild subGuild : baningGuild.getNation().getSubGuildList()) {
+            if (getBaneByAttackerGuild(subGuild) != null) {
+                PlaceAssetMsg.sendPlaceAssetError(player.getClientConnection(), 1, "Your Nation Already Has a Bane Placed");
+                return false;
+            }
+        }
         stone.addEffectBit((1 << 19));
         stone.setMaxHitPoints(stone.getBlueprint().getMaxHealth(stone.getRank()));
         stone.setCurrentHitPoints(stone.getMaxHitPoints());