Need help troubleshooting this error code

[LTQA]

PHP Fatal error: Uncaught Error: Call to undefined function create_function() in /nas/content/live/ltqadev/wp-content/themes/x/framework/functions/global/admin/meta/setup.php:34\nStack trace:\n#0 /nas/content/live/ltqadev/wp-content/themes/x/framework/functions/global/admin/meta/entries.php(82): x_add_meta_box(Array)\n#1 /nas/content/live/ltqadev/wp-includes/class-wp-hook.php(310): x_add_page_meta_boxes(‘post’)\n#2 /nas/content/live/ltqadev/wp-includes/class-wp-hook.php(332): WP_Hook->apply_filters(NULL, Array)\n#3 /nas/content/live/ltqadev/wp-includes/plugin.php(517): WP_Hook->do_action(Array)\n#4 /nas/content/live/ltqadev/wp-admin/includes/meta-boxes.php(1599): do_action(‘add_meta_boxes’, ‘post’, Object(WP_Post))\n#5 /nas/content/live/ltqadev/wp-admin/edit-form-blocks.php(276): register_and_do_post_meta_boxes(Object(WP_Post))\n#6 /nas/content/live/ltqadev/wp-admin/post.php(187): require(’/nas/content/li…’)\n#7 {main}\n thrown in /nas/content/live/ltqadev/wp-content/themes/x/framework/functions/global/admin/meta/setup.php on line 34, referer: https://ltqadev.wpengine.com/wp-admin/edit.php?post_type=post

[marc_a]

Hey @LTQA,

Thanks for reaching out!

Please make sure that you have the latest version of X and Cornerstone plugin. You may try the following steps:

If you can access your WP admin page, please do as follows:

• Go to the theme page and activate another theme
• After activating another theme, you can now delete your current X theme
• Uninstall and delete the Cornerstone plugin
• Download the latest version of the X theme in your themeco account
• Upload the latest version to your website and activate it
• • Install again the compatible Cornerstone plugin by following this screensnhot.

If you are unable to login to your wp-admin page, please login using SFTP/FTP and do as follows:

• Locate the folder wp-content/themes/x and delete the folder.
• After deleting the folder, you are now able to login to your website
• Uninstall and delete the Cornerstone plugin
• Download the latest version of the X theme in your themeco account
• Upload the latest version to your website and activate it
• Install again the compatible Cornerstone plugin by following this screenshot.

Hope that helps and let us know how it goes.