[fix] naming series refactor patch
diff --git a/erpnext/patches/v11_0/refactor_naming_series.py b/erpnext/patches/v11_0/refactor_naming_series.py
index 9f4687c..a3682de 100644
--- a/erpnext/patches/v11_0/refactor_naming_series.py
+++ b/erpnext/patches/v11_0/refactor_naming_series.py
@@ -136,7 +136,7 @@
property_setter.flags.validate_fields_for_doctype = True
try:
property_setter.insert()
- except DuplicateEntryError:
+ except frappe.DuplicateEntryError:
name = "{0}-{1}-{2}-1".format(doctype, fieldname, property)
property_setter.name = name
property_setter.insert()
\ No newline at end of file