Title: Scanner Server Error
Last modified: June 15, 2018

---

# Scanner Server Error

 *  [jpb_adx](https://wordpress.org/support/users/jpbmaga/)
 * (@jpbmaga)
 * [7 years, 11 months ago](https://wordpress.org/support/topic/scanner-server-error/)
 * Siteground shared hosting. Tried disabling TMP and or SESSION scan. Verified 
   PHP CURL.
 * Failed to load resource: the server responded with a status of 504 ()

Viewing 11 replies - 1 through 11 (of 11 total)

 *  Plugin Author [gioni](https://wordpress.org/support/users/gioni/)
 * (@gioni)
 * [7 years, 11 months ago](https://wordpress.org/support/topic/scanner-server-error/#post-10405981)
 * When exactly does it happen?
 *  Thread Starter [jpb_adx](https://wordpress.org/support/users/jpbmaga/)
 * (@jpbmaga)
 * [7 years, 11 months ago](https://wordpress.org/support/topic/scanner-server-error/#post-10406649)
 * It happens whenever I try to run a quick scan (I’ve tried 5-6 times), within 
   a few minutes, I get a message there is a problem (in Chrome) and to check the
   console. I press OK, the scan is then aborted. When I press F12, I see those 
   messages several times.
 * I have tried disabling session and/or temporary, and PHP CURL is enabled.
 *  Plugin Author [gioni](https://wordpress.org/support/users/gioni/)
 * (@gioni)
 * [7 years, 11 months ago](https://wordpress.org/support/topic/scanner-server-error/#post-10406978)
 * Could you open the browser console, switch to the Network tab and click the Start
   Scan button. You should see multiple consecutive POST requests to the server 
   with 5 or less seconds interval.
 *  Thread Starter [jpb_adx](https://wordpress.org/support/users/jpbmaga/)
 * (@jpbmaga)
 * [7 years, 11 months ago](https://wordpress.org/support/topic/scanner-server-error/#post-10407196)
 * The requests go into pending mode and after 1 minute generate a 504 error
 *  Thread Starter [jpb_adx](https://wordpress.org/support/users/jpbmaga/)
 * (@jpbmaga)
 * [7 years, 11 months ago](https://wordpress.org/support/topic/scanner-server-error/#post-10407198)
 * It repeats this 3 times and then quits
 *  Plugin Author [gioni](https://wordpress.org/support/users/gioni/)
 * (@gioni)
 * [7 years, 11 months ago](https://wordpress.org/support/topic/scanner-server-error/#post-10407802)
 * You should check the server error log. There should be more informative error
   messages than just a 504 error.
 * What Siteground hosting plan do you use?
 *  Thread Starter [jpb_adx](https://wordpress.org/support/users/jpbmaga/)
 * (@jpbmaga)
 * [7 years, 11 months ago](https://wordpress.org/support/topic/scanner-server-error/#post-10408549)
 * Timeout waiting for output from CGI script
 *  Thread Starter [jpb_adx](https://wordpress.org/support/users/jpbmaga/)
 * (@jpbmaga)
 * [7 years, 11 months ago](https://wordpress.org/support/topic/scanner-server-error/#post-10408567)
 * Its called the Growbig plan
 *  Thread Starter [jpb_adx](https://wordpress.org/support/users/jpbmaga/)
 * (@jpbmaga)
 * [7 years, 10 months ago](https://wordpress.org/support/topic/scanner-server-error/#post-10480112)
 * Jul 09, 09:52:19
 * PHP Notice: Undefined offset: 0 in …/public_html/wp-content/plugins/wp-cerber/
   cerber-load.php on line 4035
 * Jul 09, 09:52:19
 * PHP Notice: Trying to get property of non-object in …/public_html/wp-content/
   plugins/wp-cerber/cerber-load.php on line 3986
 *  Plugin Author [gioni](https://wordpress.org/support/users/gioni/)
 * (@gioni)
 * [7 years, 10 months ago](https://wordpress.org/support/topic/scanner-server-error/#post-10480325)
 * Please reinstall the plugin. There are no such lines in the code.
 *  Thread Starter [jpb_adx](https://wordpress.org/support/users/jpbmaga/)
 * (@jpbmaga)
 * [7 years, 10 months ago](https://wordpress.org/support/topic/scanner-server-error/#post-10481558)
 * I thought those log entries might be related to the scanner, but apparently not,
   as I re-installed and attempted to run the scanner without generating any errors
   in the PHP log. However, the scanner still hung as before.

Viewing 11 replies - 1 through 11 (of 11 total)

The topic ‘Scanner Server Error’ is closed to new replies.

 * ![](https://s.w.org/plugins/geopattern-icon/wp-cerber_77a9bf.svg)
 * [WP Cerber Security, Anti-spam & Malware Scan](https://wordpress.org/plugins/wp-cerber/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/wp-cerber/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/wp-cerber/)
 * [Active Topics](https://wordpress.org/support/plugin/wp-cerber/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/wp-cerber/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/wp-cerber/reviews/)

 * 11 replies
 * 2 participants
 * Last reply from: [jpb_adx](https://wordpress.org/support/users/jpbmaga/)
 * Last activity: [7 years, 10 months ago](https://wordpress.org/support/topic/scanner-server-error/#post-10481558)
 * Status: not resolved