Undefined property: CI::$mdl_invoice_amounts on recurring invoices

Support
8

In file /application/modules/invoices/controllers/Cron.php
on line 61
$this->mdl_invoices->copy_invoice($source_id, $target_id, true);

set this to false
$this->mdl_invoices->copy_invoice($source_id, $target_id, false);

on my case it’s work, recurring invoice not empty
CMIIW