diff --git a/src/main/java/com/jelly/CaneBuilder/ThreadManager.java b/src/main/java/com/jelly/CaneBuilder/ThreadManager.java
index 0469326..f93f879 100644
--- a/src/main/java/com/jelly/CaneBuilder/ThreadManager.java
+++ b/src/main/java/com/jelly/CaneBuilder/ThreadManager.java
@@ -3,6 +3,7 @@
 import com.jelly.CaneBuilder.utils.Utils;
 
 import java.util.ArrayList;
+import java.util.ConcurrentModificationException;
 import java.util.List;
 
 public class ThreadManager {
@@ -21,11 +22,14 @@ public static void executeThread(Thread thread){
         }).start();
     }
     public static void stopExistingThreads(){
-        for(Thread t : currentThreads){
-            Utils.addCustomLog("Threads interrupted");
-            t.interrupt();
-            currentThreads.remove(t);
+        for (Thread t : currentThreads) {
+            try {
+                Utils.addCustomLog("Threads interrupted");
+                t.interrupt();
+            } catch (Exception e) {
+            }
         }
+        currentThreads.clear();
     }
 
 
diff --git a/src/main/java/com/jelly/CaneBuilder/processes/PlaceSC.java b/src/main/java/com/jelly/CaneBuilder/processes/PlaceSC.java
index aa674fd..2b40a4c 100644
--- a/src/main/java/com/jelly/CaneBuilder/processes/PlaceSC.java
+++ b/src/main/java/com/jelly/CaneBuilder/processes/PlaceSC.java
@@ -162,7 +162,7 @@ public void onEnable() {
                 }
                 threadSleep(500);
                 mc.thePlayer.closeScreen();
-                //clear hotbar & set rancher's boots
+                //set rancher's boots
                 Utils.addCustomLog("Setting Rancher's boot's speed");
                 Thread.sleep(500);
                 InventoryUtils.openInventory();
@@ -199,6 +199,17 @@ public void onEnable() {
                 Thread.sleep(500);
                 KeyBinding.onTick(mc.gameSettings.keyBindUseItem.getKeyCode());
                 Thread.sleep(500);
+                //clear hotbar
+                InventoryUtils.openInventory();
+                for(int i = 0; i < 8; i++) {
+                    if (mc.thePlayer.inventoryContainer.getSlot(i + 36).getHasStack()) {
+                        clickWindow(mc.thePlayer.openContainer.windowId, 36 + i, 0, 1);
+                        Thread.sleep(500);
+                    }
+                }
+                Thread.sleep(500);
+                mc.thePlayer.closeScreen();
+                Thread.sleep(500);
                 //init pos
                 Utils.addCustomLog("Initializing place sugarcane");
                 rotation.easeTo(AngleUtils.parallelToC1(), 89f, 1000);