This support ticket is created 2 years, 4 months ago. There's a good chance that you are reading advice that it now obsolete.
This is the technical support forum for Toolset - a suite of plugins for developing WordPress sites without writing PHP.
Everyone can read this forum, but only Toolset clients can post in it. Toolset support works 6 days per week, 19 hours per day.
No supporters are available to work today on Toolset forum. Feel free to create tickets and we will handle it as soon as we are online. Thank you for your understanding.
or something to that effect. the array push needs to be inside the conditional because $current_post is not an object somehow and that conditional is supposed to be checking that it's both an object and an instance of WP_Post