Title: WP error ‘Could not insert post into the database’ Last modified: July 7, 2026 --- # WP error ‘Could not insert post into the database’ * [ffusion](https://wordpress.org/support/users/ffusion/) * (@ffusion) * [1 day, 4 hours ago](https://wordpress.org/support/topic/wp-error-could-not-insert-post-into-the-database/) * Need to know how to fix this error we get when clicking the “Add New Episode” button. Error: ‘Could not insert post into the database’ Viewing 6 replies - 1 through 6 (of 6 total) * Thread Starter [ffusion](https://wordpress.org/support/users/ffusion/) * (@ffusion) * [1 day, 4 hours ago](https://wordpress.org/support/topic/wp-error-could-not-insert-post-into-the-database/#post-18958571) * Support said… Thanks for contacting us and sorry you’re having trouble here. - Have you added any custom filters recently? - Are you able to create regular posts? - do you have any errors in the [PHP debug log](https://developer.wordpress.org/advanced-administration/debug/debug-wordpress/)? - have any plugins been recently installed or updated, or versions of WordPress? * I was able to confirm that this happens on Podcasting → Add New Episode * Thread Starter [ffusion](https://wordpress.org/support/users/ffusion/) * (@ffusion) * [1 day, 4 hours ago](https://wordpress.org/support/topic/wp-error-could-not-insert-post-into-the-database/#post-18958573) * I see I get the error on new Posts, too. I will check on the log…Yes, we have updated all plugins to their latest, Don’t believe we have updated WP itself since before this was not an issue. Running WP 7.0 … * Thread Starter [ffusion](https://wordpress.org/support/users/ffusion/) * (@ffusion) * [1 day, 4 hours ago](https://wordpress.org/support/topic/wp-error-could-not-insert-post-into-the-database/#post-18958586) * log shows… * **WordPress database error:** [Duplicate entry ‘0’ for key ‘PRIMARY’] `INSERT INTO 21DtDSD_actionscheduler_actions ( ``hook`, `status`, `scheduled_date_gmt`,` scheduled_date_local`, `schedule`, `group_id`, `priority`, `args` ) SELECT 'action_scheduler_run_recurring_actions_schedule_hook',' pending', '2026-07-07 15:43:11', '2026-07-07 15:43:11', 'O:32:\"ActionScheduler_IntervalSchedule\": 5:{s:22:\"\0*\0scheduled_timestamp\";i:1783438991;s:18:\"\0*\0first_timestamp\"; i:1783438991;s:13:\"\0*\0recurrence\";i:86400;s:49:\"\0ActionScheduler_IntervalSchedule\ 0start_timestamp\";i:1783438991;s:53:\"\0ActionScheduler_IntervalSchedule\0interval_in_seconds\"; i:86400;}', 3, 20, '[]' FROM DUAL WHERE ( SELECT NULL FROM DUAL ) IS NULL * **WordPress database error:** [Duplicate entry ‘0’ for key ‘PRIMARY’] `INSERT INTO 21DtDSD_actionscheduler_actions ( ``hook`, `status`, `scheduled_date_gmt`,` scheduled_date_local`, `schedule`, `group_id`, `priority`, `args` ) SELECT 'action_scheduler/ migration_hook', 'pending', '2026-07-07 15:44:12', '2026-07-07 15:44:12', 'O: 30:\"ActionScheduler_SimpleSchedule\":2:{s:22:\"\0*\0scheduled_timestamp\";i: 1783439052;s:41:\"\0ActionScheduler_SimpleSchedule\0timestamp\";i:1783439052;}', 1, 10, '[]' FROM DUAL WHERE ( SELECT NULL FROM DUAL ) IS NULL * **WordPress database error:** [Duplicate entry ‘0’ for key ‘PRIMARY’] `INSERT INTO 21DtDSD_actionscheduler_actions ( ``hook`, `status`, `scheduled_date_gmt`,` scheduled_date_local`, `schedule`, `group_id`, `priority`, `args` ) SELECT 'publishpressfuture_check_expired_actions',' pending', '2026-07-07 15:43:12', '2026-07-07 15:43:12', 'O:32:\"ActionScheduler_IntervalSchedule\": 5:{s:22:\"\0*\0scheduled_timestamp\";i:1783438992;s:18:\"\0*\0first_timestamp\"; i:1783438992;s:13:\"\0*\0recurrence\";i:86400;s:49:\"\0ActionScheduler_IntervalSchedule\ 0start_timestamp\";i:1783438992;s:53:\"\0ActionScheduler_IntervalSchedule\0interval_in_seconds\"; i:86400;}', 2, 10, '[]' FROM DUAL WHERE ( SELECT NULL FROM DUAL ) IS NULL * **WordPress database error:** [Duplicate entry ‘0’ for key ‘PRIMARY’] `INSERT INTO ``21DtDSD_posts` (`post_author`, `post_date`, `post_date_gmt`, `post_content`,` post_content_filtered`, `post_title`, `post_excerpt`, `post_status`, `post_type`,` comment_status`, `ping_status`, `post_password`, `post_name`, `to_ping`, `pinged`,` post_modified`, `post_modified_gmt`, `post_parent`, `menu_order`, `post_mime_type`,` guid`) VALUES (1, '2026-07-07 08:43:12', '0000-00-00 00:00:00', '', '', 'Auto Draft', '', 'auto-draft', 'podcast', 'open', 'closed', '', '', '', '', '2026- 07-07 08:43:12', '0000-00-00 00:00:00', 0, 0, '', '') * Could not insert post into the database. * Thread Starter [ffusion](https://wordpress.org/support/users/ffusion/) * (@ffusion) * [1 day, 4 hours ago](https://wordpress.org/support/topic/wp-error-could-not-insert-post-into-the-database/#post-18958601) * Found this article… Was an issue with the Auto Increment setting in the tables shown in the errors above. * [https://www.malcare.com/blog/wordpress-database-error-duplicate-entry-0-for-key-primary-error-9-steps/](https://www.malcare.com/blog/wordpress-database-error-duplicate-entry-0-for-key-primary-error-9-steps/) * Posts now work! * Thread Starter [ffusion](https://wordpress.org/support/users/ffusion/) * (@ffusion) * [1 day, 4 hours ago](https://wordpress.org/support/topic/wp-error-could-not-insert-post-into-the-database/#post-18958607) * Well… now they do not update or save… * “Updating failed. The response is not a valid JSON response.” * ugh… * Thread Starter [ffusion](https://wordpress.org/support/users/ffusion/) * (@ffusion) * [1 day, 3 hours ago](https://wordpress.org/support/topic/wp-error-could-not-insert-post-into-the-database/#post-18958624) * Also reaching out to hosting server support. 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