fix error (#13907)
diff --git a/erpnext/hr/doctype/department_approver/department_approver.py b/erpnext/hr/doctype/department_approver/department_approver.py
index b65e8ff..d3d3a0d 100644
--- a/erpnext/hr/doctype/department_approver/department_approver.py
+++ b/erpnext/hr/doctype/department_approver/department_approver.py
@@ -27,6 +27,8 @@
frappe.throw(_("Please select Employee Record first."))
approvers = []
+ department_details = {}
+ department_list = []
employee_department = filters.get("department") or frappe.get_value("Employee", filters.get("employee"), "department")
if employee_department:
department_details = frappe.db.get_value("Department", {"name": employee_department}, ["lft", "rgt"], as_dict=True)