Pro 4.0 Issue with E&P Form Builder

Hi there,

Updates on a staging server to Pro 4.0 and I am getting the following error with the E&P form builder plugin activated (WP Debug Mode on).

Notice : Trying to get property ‘ID’ of non-object in /var/www/html/wp-includes/class-wp-query.php on line 4027

Fatal error : Uncaught Error: Call to a member function get_id() on null in /var/www/html/wp-content/themes/pro/cornerstone/includes/classes/components/class-shortcode-finder.php:157 Stack trace: #0 /var/www/html/wp-content/themes/pro/cornerstone/includes/classes/components/class-shortcode-finder.php(37): Cornerstone_Shortcode_Finder->wp_estimation_form_process_header_footer(Object(WP_Post)) #1 /var/www/html/wp-includes/class-wp-hook.php(287): Cornerstone_Shortcode_Finder->wp_estimation_form(Object(WP_Post)) #2 /var/www/html/wp-includes/plugin.php(212): WP_Hook->apply_filters(Object(WP_Post), Array) #3 /var/www/html/wp-content/plugins/WP_Estimation_Form/includes/lfb-core.php(1492): apply_filters(‘cost_estimation…’, Object(WP_Post)) #4 /var/www/html/wp-includes/class-wp-hook.php(289): LFB_Core->conditionally_add_scripts_and_styles(Array) #5 /var/www/html/wp-includes/plugin.php(255): WP_Hook->apply_filters(Array, Array) #6 /var/www/html/wp-includes/class-wp-query.php(3190): apply_filters_ref_array(‘the_posts’, Array) #7 /v in /var/www/html/wp-content/themes/pro/cornerstone/includes/classes/components/class-shortcode-finder.php on line 157

Hope you can help!


Hi @kademcconville,

Thanks for reaching out.

I tried to activate the Estimation & Payment Forms plugins with the latest version of Pro 4.0 but I didn’t get any error like what you have. Maybe there’s a plugin conflict, I suggest that you will do TESTING FOR PLUGIN CONFLICT.

Hope that helps.

Thank you.

Hi there.

Deactivating all plugins, besides Estimation & Payment Forms, still issue persists.

Switching to Twenty Twenty One theme, no error.

This is a Pro issue, specific to my set-up.


Hi @kademcconville,

Thanks for bringing this to our attention. I can confirm this is an issue in the latest version of Pro. We have corrected it for the first point release.

1 Like

Thanks a lot for that - secure note updated :slight_smile:

Hi @kademcconville,

To install the new patch that fixes the issue, please give us the following information in a Secure Note.

  • WordPress Login URL
  • Admin level username and password

You can find the Secure Note button at the bottom of your posts.

Thank you.


Amended :slight_smile:

Hi @kademcconville,

I’ve tried logging into your WordPress dashboard but I’m getting: “Unknown Username” Would you mind double checking those details for us? Thanks!

My apologies, I have reset and updated.


Thanks! You’re all set. We’ve installed a patched version which is just 4.0.0 with this issue and another couple adjustments. You can safely update when the next official release is available.

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