Title: Column 'useragent' cannot be null
Last modified: August 31, 2016

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# Column 'useragent' cannot be null

 *  Resolved [ayaE](https://wordpress.org/support/users/ayae/)
 * (@ayae)
 * [10 years, 1 month ago](https://wordpress.org/support/topic/column-useragent-cannot-be-null/)
 * Hi, Arnan de Gans. Thank you for a great plugin.
 * I have AdRotate PRO and have been getting the error below;
 * ****************************************************************************
   [
   17-Feb-2016 05:58:18 UTC] WordPress database error: Column ‘useragent’ cannot
   be null for query INSERT INTO `wp_adrotate_tracker` (`ipaddress`, `timer`, `bannerid`,`
   stat`, `useragent`, `country`, `city`) VALUES (‘10.21.6.109’, ‘1455659898’, ’
   23’, ‘c’, NULL, ”, ”) made by do_action(‘wp_ajax_nopriv_adrotate_click’), call_user_func_array,
   adrotate_click_callback ****************************************************************************
 * Couldn’t UserAgent be NULL? Please advise me.
 * [https://wordpress.org/plugins/adrotate/](https://wordpress.org/plugins/adrotate/)

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

 *  Plugin Author [Arnan](https://wordpress.org/support/users/adegans/)
 * (@adegans)
 * [10 years, 1 month ago](https://wordpress.org/support/topic/column-useragent-cannot-be-null/#post-7077770)
 * Update to the latest version.
    Upgrade instruction: [https://ajdg.solutions/adrotate/manuals/upgrade-adrotate-pro-to-a-newer-version/](https://ajdg.solutions/adrotate/manuals/upgrade-adrotate-pro-to-a-newer-version/)
 *  Thread Starter [ayaE](https://wordpress.org/support/users/ayae/)
 * (@ayae)
 * [10 years, 1 month ago](https://wordpress.org/support/topic/column-useragent-cannot-be-null/#post-7077775)
 * Thank you for your response.
    I have AdRotate Professional 3.18.2, which seems
   to be the latest version for now.
 * Do you know anything else I can do?
    I appreciate your help.
 *  Plugin Author [Arnan](https://wordpress.org/support/users/adegans/)
 * (@adegans)
 * [10 years, 1 month ago](https://wordpress.org/support/topic/column-useragent-cannot-be-null/#post-7077867)
 * 3.20.1 is the newest version.
    If the download doesn’t show up in your dashboard,
   grab a new copy from your account on my site and follow the linked instructions
   🙂

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

The topic ‘Column 'useragent' cannot be null’ is closed to new replies.

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## Tags

 * [NULL](https://wordpress.org/support/topic-tag/null/)
 * [UserAgent](https://wordpress.org/support/topic-tag/useragent/)

 * 3 replies
 * 2 participants
 * Last reply from: [Arnan](https://wordpress.org/support/users/adegans/)
 * Last activity: [10 years, 1 month ago](https://wordpress.org/support/topic/column-useragent-cannot-be-null/#post-7077867)
 * Status: resolved