Title: Debug error
Last modified: August 21, 2016

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# Debug error

 *  Resolved [zukiblue](https://wordpress.org/support/users/zukiblue/)
 * (@zukiblue)
 * [12 years, 4 months ago](https://wordpress.org/support/topic/debug-error-7/)
 * an error that appear on debug.log:
 * [06-Feb-2014 08:49:57 UTC] PHP Notice: Undefined index: HTTP_USER_AGENT in /home/
   content/59/10137759/html/cockhero/www/wp-content/plugins/wp-useronline/core.php
   on line 78
 * [https://wordpress.org/plugins/wp-useronline/](https://wordpress.org/plugins/wp-useronline/)

Viewing 1 replies (of 1 total)

 *  Plugin Author [Lester Chan](https://wordpress.org/support/users/gamerz/)
 * (@gamerz)
 * [12 years, 4 months ago](https://wordpress.org/support/topic/debug-error-7/#post-4583625)
 * Notices are fine and harmless normally. In this case, if HTTP_USER_AGENT is not
   there, most probably is a bot or something which has a blank user agent.
 * I will fix it, [https://github.com/lesterchan/wp-useronline/issues/2](https://github.com/lesterchan/wp-useronline/issues/2)

Viewing 1 replies (of 1 total)

The topic ‘Debug error’ is closed to new replies.

 * ![](https://ps.w.org/wp-useronline/assets/icon.svg?rev=978026)
 * [WP-UserOnline](https://wordpress.org/plugins/wp-useronline/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/wp-useronline/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/wp-useronline/)
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 * [Unresolved Topics](https://wordpress.org/support/plugin/wp-useronline/unresolved/)
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 * 1 reply
 * 2 participants
 * Last reply from: [Lester Chan](https://wordpress.org/support/users/gamerz/)
 * Last activity: [12 years, 4 months ago](https://wordpress.org/support/topic/debug-error-7/#post-4583625)
 * Status: resolved