fix: consolidated report issue #28035

fix: consolidated report issue
diff --git a/erpnext/accounts/report/consolidated_financial_statement/consolidated_financial_statement.py b/erpnext/accounts/report/consolidated_financial_statement/consolidated_financial_statement.py
index a600ead..0de2a98 100644
--- a/erpnext/accounts/report/consolidated_financial_statement/consolidated_financial_statement.py
+++ b/erpnext/accounts/report/consolidated_financial_statement/consolidated_financial_statement.py
@@ -115,7 +115,7 @@
 		# opening_value = Aseet - liability - equity
 		for data in [asset_data, liability_data, equity_data]:
 			account_name = get_root_account_name(data[0].root_type, company)
-			opening_value += get_opening_balance(account_name, data, company)
+			opening_value += (get_opening_balance(account_name, data, company) or 0.0)
 
 		opening_balance[company] = opening_value