Title: Fatal Error
Last modified: February 6, 2020

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# Fatal Error

 *  [massimopaolini](https://wordpress.org/support/users/massimopaolini/)
 * (@massimopaolini)
 * [6 years, 3 months ago](https://wordpress.org/support/topic/fatal-error-3406/)
 * Installed the plugin on our development site and got the following error.
 * Fatal error: Uncaught Exception: WP_Error Object ( [errors] => Array ( [1] =>
   Array ( [0] => Our CMB2 library failed to load. ) ) [error_data] => Array ( ))
   in /home/spectrumgroup/sgo.spectrumgroup.dev/wp-content/plugins/wp-noteup/class/
   class-wp-noteup-core.php:45 Stack trace: #0 /home/spectrumgroup/sgo.spectrumgroup.
   dev/wp-content/plugins/wp-noteup/class/class-wp-noteup-core.php(26): WP_NoteUp_Core-
   >cmb2() #1 /home/spectrumgroup/sgo.spectrumgroup.dev/wp-content/plugins/wp-noteup/
   wp-noteup.php(57): WP_NoteUp_Core->__construct() #2 /home/spectrumgroup/sgo.spectrumgroup.
   dev/wp-content/plugins/wp-noteup/wp-noteup.php(83): wp_noteup_init() #3 /home/
   spectrumgroup/sgo.spectrumgroup.dev/wp-admin/includes/plugin.php(2223): include(‘/
   home/spectrumg…’) #4 /home/spectrumgroup/sgo.spectrumgroup.dev/wp-admin/plugins.
   php(175): plugin_sandbox_scrape(‘wp-noteup/wp-no…’) #5 {main} thrown in /home/
   spectrumgroup/sgo.spectrumgroup.dev/wp-content/plugins/wp-noteup/class/class-
   wp-noteup-core.php on line 45
 * The page I need help with: _[[log in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2Ffatal-error-3406%2F%3Foutput_format%3Dmd&locale=en_US)
   to see the link]_

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 * 0 replies
 * 1 participant
 * Last reply from: [massimopaolini](https://wordpress.org/support/users/massimopaolini/)
 * Last activity: [6 years, 3 months ago](https://wordpress.org/support/topic/fatal-error-3406/)
 * Status: not resolved