Title: WP Database Error
Last modified: August 18, 2016

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# WP Database Error

 *  Resolved [Davor Dedic](https://wordpress.org/support/users/daddo/)
 * (@daddo)
 * [19 years, 4 months ago](https://wordpress.org/support/topic/wp-database-error-1/)
 * Ok,
 * I made mistake not to deactivate all the plugs when updating (I’ll never do it
   again, I swear), so when I went from 2.05 to 2.06 I get this whenever I upload
   something or create new page ;
 * WordPress database error: [Unknown column ‘none’ in ‘field list’]
    INSERT INTO
   wp_post2cat (post_id, category_id) VALUES (116, none)
 * Warning: Cannot modify header information – headers already sent by (output started
   at /home/mydomain/wp-includes/wp-db.php:104) in /home/mydomain/wp-includes/pluggable-
   functions.php on line 270
 * I would appreciate any help so I wouldn’t have to go writing all the posts all
   over again, I’ll do it if there is no fix for this but if there is, I’d be very
   grateful.
    Thanx

Viewing 3 replies - 1 through 3 (of 3 total)

 *  [Samuel B](https://wordpress.org/support/users/samboll/)
 * (@samboll)
 * [19 years, 4 months ago](https://wordpress.org/support/topic/wp-database-error-1/#post-508410)
 * It does sound like a plugin conflict.
    You tried deactivating all of them and
   reactivating them one by one?
 *  Thread Starter [Davor Dedic](https://wordpress.org/support/users/daddo/)
 * (@daddo)
 * [19 years, 4 months ago](https://wordpress.org/support/topic/wp-database-error-1/#post-508588)
 * Yes,
    Another thing I tried was to make a fresh install of 2.07 and use the same
   plugs, everything worked normally, it’s only that my upgrade got this. Unfortunately
   I didn’t back-up my database either… (stupid, stupid, stupid!) If you have solution,
   please help, can I fix the database, what can I do… Greetz Daddo
 *  Thread Starter [Davor Dedic](https://wordpress.org/support/users/daddo/)
 * (@daddo)
 * [19 years, 4 months ago](https://wordpress.org/support/topic/wp-database-error-1/#post-508774)
 * Well,
    Yes it’s resolved now, thx to 2.1 that has implemented a xml feature to
   export your posts, categories and pages, there was quite a bit of job to get 
   it all back to way it used to be, but it was not as frustrating as I was expecting
   it to be. thx.

Viewing 3 replies - 1 through 3 (of 3 total)

The topic ‘WP Database Error’ is closed to new replies.

## Tags

 * [database](https://wordpress.org/support/topic-tag/database/)
 * [post2cat](https://wordpress.org/support/topic-tag/post2cat/)

 * In: [Fixing WordPress](https://wordpress.org/support/forum/how-to-and-troubleshooting/)
 * 3 replies
 * 2 participants
 * Last reply from: [Davor Dedic](https://wordpress.org/support/users/daddo/)
 * Last activity: [19 years, 4 months ago](https://wordpress.org/support/topic/wp-database-error-1/#post-508774)
 * Status: resolved

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