diff --git a/competition_codes/sectionals/sectional_main_experimental.py b/competition_codes/sectionals/sectional_main_experimental.py
index dabb297..164ddc0 100644
--- a/competition_codes/sectionals/sectional_main_experimental.py
+++ b/competition_codes/sectionals/sectional_main_experimental.py
@@ -31,9 +31,6 @@ async def drive_backward():
     """Drive forward continuously using DriveBase."""
     drive_base.drive(400, 0)
 
-async def async_drive(speed, direction):
-    drive_base.d
-
 
 async def monitor_distance():
     """Monitor ultrasonic sensor and stop when wall is detected."""
@@ -46,11 +43,14 @@ async def monitor_distance():
             drive_base.stop()
             print(f"Wall detected at {distance}mm!")
             break
+        if distance is None:
+            continue
+
         
         # Small delay to prevent overwhelming the sensor
         await wait(50)
 
-# Experimental - Removed forge and who live here part
+# Experimental - Removed forge and who lived here part
 async def Run1():  # From M8_5.py
     right_arm.run_angle(500,30)
     left_arm.run_angle(500,90)