Title: DB Problem Duplicate column
Last modified: August 30, 2016

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# DB Problem Duplicate column

 *  Resolved [RDSergij](https://wordpress.org/support/users/rdsergij/)
 * (@rdsergij)
 * [10 years, 4 months ago](https://wordpress.org/support/topic/db-problem-duplicate-column/)
 * [Screen of problem](http://i.imgur.com/QqrVQo8.png)
    I Installed the plugin and
   then created gallery. But when I try to Manage Galleries, it is shown a DB error:
   WordPress database error: [Duplicate column name ‘updated_at’] ALTER TABLE `wp_ngg_pictures`
   ADD COLUMN `updated_at` BIGINT
 * [https://wordpress.org/plugins/nextgen-gallery/](https://wordpress.org/plugins/nextgen-gallery/)

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

 *  Plugin Contributor [photocrati](https://wordpress.org/support/users/photocrati/)
 * (@photocrati)
 * [10 years, 4 months ago](https://wordpress.org/support/topic/db-problem-duplicate-column/#post-6874161)
 * [@rdsergij](https://wordpress.org/support/users/rdsergij/) – There could be a
   plugin conflict going on here or at least it should be ruled out. Have you tried
   deactivating all of your plugins, clearing your browser cache (and site caches
   if you are using a caching plugin), then reactivating the NextGEN plugin?
 * If this fixes the problem then it was likely one of the deactivated plugins that
   was causing an issue. Now, retrace your steps activating each plugin and re-checking
   to see if the problem returns. If it does then that last activated plugin was
   probably the one. Keep reactivating and in most cases it is also best to keep
   checking after each plugin, sometimes there may be more than one plugin on a 
   site that will create an issue. If you do find one (or more) plugins causing 
   this problem we would greatly appreciate your feedback on them so the developers
   may address them as soon as they can.
 * Also to note, in rare cases it may be the theme itself that is causing a conflict
   so while you have just the NextGEN plugin activated you might consider temporarily
   switching to one of the default WordPress Twenty series themes and see if this
   corrects the issue as well.
 * If the problem still persists after all of this we would still want to know, 
   even more so, as we will still want to sort out the issue and may need additional
   details.
 * Thanks!
 * – Cais.
 *  Thread Starter [RDSergij](https://wordpress.org/support/users/rdsergij/)
 * (@rdsergij)
 * [10 years, 4 months ago](https://wordpress.org/support/topic/db-problem-duplicate-column/#post-6874167)
 * Thank you! You are right.
    It was plugin conflict with Gmedia Gallery.
 *  Plugin Contributor [photocrati](https://wordpress.org/support/users/photocrati/)
 * (@photocrati)
 * [10 years, 4 months ago](https://wordpress.org/support/topic/db-problem-duplicate-column/#post-6874177)
 * [@rdsergij](https://wordpress.org/support/users/rdsergij/) – Thanks for the update!
 * – Cais.

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

The topic ‘DB Problem Duplicate column’ is closed to new replies.

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## Tags

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

 * 3 replies
 * 2 participants
 * Last reply from: [photocrati](https://wordpress.org/support/users/photocrati/)
 * Last activity: [10 years, 4 months ago](https://wordpress.org/support/topic/db-problem-duplicate-column/#post-6874177)
 * Status: resolved