Fix SmartPlaceListener for spectators

Signed-off-by: yoyosource <yoyosource@nidido.de>

BauSystem_Main/src/de/steamwar/bausystem/features/smartplace/SmartPlaceListener.java

@@ -22,6 +22,7 @@ package de.steamwar.bausystem.features.smartplace;
 import de.steamwar.bausystem.configplayer.Config;
 import de.steamwar.bausystem.linkage.LinkageType;
 import de.steamwar.bausystem.linkage.Linked;
+import org.bukkit.GameMode;
 import org.bukkit.Material;
 import org.bukkit.World;
 import org.bukkit.block.Block;
@@ -61,6 +62,7 @@ public class SmartPlaceListener implements Listener {
 
     @EventHandler
     public void onPlayerInteract(PlayerInteractEvent event) {
+        if (event.getPlayer().getGameMode() == GameMode.SPECTATOR) return;
         if (event.getAction() != Action.RIGHT_CLICK_BLOCK) return;
         if (!Config.getInstance().get(event.getPlayer()).getPlainValueOrDefault("smartPlace", false)) return;
         if (event.getPlayer().isSneaking()) {