fix: Removed unneccesary Duplicate Entry Error. (#20120)

diff --git a/erpnext/stock/doctype/item/item.py b/erpnext/stock/doctype/item/item.py
index 151be11..a1f06b2 100644
--- a/erpnext/stock/doctype/item/item.py
+++ b/erpnext/stock/doctype/item/item.py
@@ -551,7 +551,7 @@
 						"""select parent from `tabItem Barcode` where barcode = %s and parent != %s""", (item_barcode.barcode, self.name))
 					if duplicate:
 						frappe.throw(_("Barcode {0} already used in Item {1}").format(
-							item_barcode.barcode, duplicate[0][0]), frappe.DuplicateEntryError)
+							item_barcode.barcode, duplicate[0][0]))
 
 					item_barcode.barcode_type = "" if item_barcode.barcode_type not in options else item_barcode.barcode_type
 					if item_barcode.barcode_type and item_barcode.barcode_type.upper() in ('EAN', 'UPC-A', 'EAN-13', 'EAN-8'):