Fixed Demo
diff --git a/erpnext/demo/user/accounts.py b/erpnext/demo/user/accounts.py
index 045c306..392d13d 100644
--- a/erpnext/demo/user/accounts.py
+++ b/erpnext/demo/user/accounts.py
@@ -67,7 +67,7 @@
def make_payment_entries(ref_doctype, report):
outstanding_invoices = list(set([r[3] for r in query_report.run(report,
{"report_date": frappe.flags.current_date })["result"] if r[2]==ref_doctype]))
-
+
# make Payment Entry
for inv in outstanding_invoices[:random.randint(1, 2)]:
pe = get_payment_entry(ref_doctype, inv)