Title: Fatal error – Uncaught RuntimeException
Last modified: September 22, 2020

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# Fatal error – Uncaught RuntimeException

 *  Resolved [N33D](https://wordpress.org/support/users/n33d/)
 * (@n33d)
 * [5 years, 8 months ago](https://wordpress.org/support/topic/fatal-error-uncaught-runtimeexception-5/)
 * Hi there,
 * The plugin causes some troubles (takes it offline) in my site with these errors:
 * `Fatal error: Uncaught RuntimeException: Error saving action: Error saving action:
   Duplicate entry ‘0’ for key ‘PRIMARY’ in
 * /var/www/nldepop-newfield/wordpress/current/wp-content/plugins/wp-mail-smtp/vendor/
   woocommerce/action-scheduler/classes/migration/ActionScheduler_DBStoreMigrator.
   php:44
 * Stack trace: #0
 * /var/www/nldepop-newfield/wordpress/current/wp-content/plugins/wp-mail-smtp/vendor/
   woocommerce/action-scheduler/classes/data-stores/ActionScheduler_HybridStore.
   php(242):
 * ActionScheduler_DBStoreMigrator->save_action(Object(ActionScheduler_Action), 
   NULL) #1
 * /var/www/nldepop-newfield/wordpress/current/wp-content/plugins/wp-mail-smtp/vendor/
   woocommerce/action-scheduler/classes/ActionScheduler_ActionFactory.php(177):
 * ActionScheduler_HybridStore->save_action(Object(ActionScheduler_Action)) #2
 * /var/www/nldepop-newfield/wordpress/current/wp-content/plugins/wp-mail-smtp/vendor/
   woocommerce/action-scheduler/classes/ActionScheduler_ActionFactory.php(84): ActionScheduler_ActionFactory-
   >store(Object(ActionScheduler_Action)) #3 /var/w in
 * /var/www/nldepop-newfield/wordpress/current/wp-content/plugins/wp-mail-smtp/vendor/
   woocommerce/action-scheduler/classes/migration/ActionScheduler_DBStoreMigrator.
   php on line 44
 * Any idea?
 * Best regards,
    Justin

Viewing 2 replies - 1 through 2 (of 2 total)

 *  Plugin Author [Gregor Capuder](https://wordpress.org/support/users/capuderg/)
 * (@capuderg)
 * [5 years, 8 months ago](https://wordpress.org/support/topic/fatal-error-uncaught-runtimeexception-5/#post-13437433)
 * Hi Justin,
 * it looks like the Action Scheduler library (that we use in our plugin) can’t 
   save new actions to the database. It looks like there is an issue with IDs for
   the primary key of the action scheduler DB table.
 * Could you please please check in your database and see if you have these 4 DB
   tables there:
 *     ```
       wp_actionscheduler_actions
       wp_actionscheduler_claims
       wp_actionscheduler_groups
       wp_actionscheduler_logs
       ```
   
 * Note: you might have a different table name prefix than in the example above (`
   wp_`).
 * If you do, then these tables or at least the `wp_actionscheduler_actions` table
   might be corrupted and would need to be repaired.
 * Are you maybe also using some other plugins that are using Action Scheduler? 
   Maybe WooCommerce?
 * Is this error occurring all the time, or was this only a few isolated issues?
 * Take care!
 *  [Sanjeev Aryal](https://wordpress.org/support/users/sanzeeb3/)
 * (@sanzeeb3)
 * [5 years, 8 months ago](https://wordpress.org/support/topic/fatal-error-uncaught-runtimeexception-5/#post-13472760)
 * Hi [@n33d](https://wordpress.org/support/users/n33d/) – We haven’t heard from
   you in about a week, so I’m going to go ahead and mark this ticket resolved. 
   If you still have questions, though, please feel welcome to continue the conversation.

Viewing 2 replies - 1 through 2 (of 2 total)

The topic ‘Fatal error – Uncaught RuntimeException’ is closed to new replies.

 * ![](https://ps.w.org/wp-mail-smtp/assets/icon-256x256.png?rev=1755440)
 * [WP Mail SMTP by WPForms - The Most Popular SMTP and Email Log Plugin](https://wordpress.org/plugins/wp-mail-smtp/)
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 * 2 replies
 * 3 participants
 * Last reply from: [Sanjeev Aryal](https://wordpress.org/support/users/sanzeeb3/)
 * Last activity: [5 years, 8 months ago](https://wordpress.org/support/topic/fatal-error-uncaught-runtimeexception-5/#post-13472760)
 * Status: resolved