Update make_guardian.py
diff --git a/erpnext/patches/v7_0/make_guardian.py b/erpnext/patches/v7_0/make_guardian.py
index 15b9bd1..f654b79 100644
--- a/erpnext/patches/v7_0/make_guardian.py
+++ b/erpnext/patches/v7_0/make_guardian.py
@@ -6,6 +6,7 @@
 		frappe.reload_doc("schools", "doctype", "student")
 		frappe.reload_doc("schools", "doctype", "guardian")
 		frappe.reload_doc("schools", "doctype", "guardian_interest")
+		frappe.reload_doc("hr", "doctype", "interest")
 	
 		students = frappe.get_all("Student", fields=["name", "father_name", "father_email_id", 
 			"mother_name", "mother_email_id"])