Title: Live Scan Error
Last modified: November 12, 2016

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# Live Scan Error

 *  [jeeverett](https://wordpress.org/support/users/jeeverett/)
 * (@jeeverett)
 * [9 years, 6 months ago](https://wordpress.org/support/topic/live-scan-error/)
 * Wordfence has been working seemingly fine for years on our server, but has started
   displaying this error (when I’m trying to view the live traffic, for example):
 * Error writing value chunk for wfsd_engine (MySQL error: [0] )
 * I’m not sure just how recently this error started, but we haven’t made any other
   recent changes to the WordPress installation.
 * Any idea what this error might indicate? The SQL server itself doesn’t show any
   errors or problems at all.
 * Thanks!

Viewing 4 replies - 1 through 4 (of 4 total)

 *  [wfalaa](https://wordpress.org/support/users/wfalaa/)
 * (@wfalaa)
 * [9 years, 6 months ago](https://wordpress.org/support/topic/live-scan-error/#post-8439025)
 * Hi jeeverett,
    Can you confirm that you don’t have this error displayed in “Scan
   Detailed Activity” box in the scan page? I suggest turning on “[Enable debugging mode](https://docs.wordfence.com/en/Wordfence_options#Enable_debugging_mode_.28increases_database_load.29)”
   option -temporarily- under (Wordfence > Diagnostics) and run a new scan after
   that, keep watching for any error message that might appear in the activity log.
 * Also, please go to (Wordfence > Diagnostics) page and let me know your current“
   PHP version”.
 * Thanks.
 *  Thread Starter [jeeverett](https://wordpress.org/support/users/jeeverett/)
 * (@jeeverett)
 * [9 years, 6 months ago](https://wordpress.org/support/topic/live-scan-error/#post-8449709)
 * Hi,
 * Yes, it appears the error also shows up periodically in the “scan detailed activity”
   box. For example:
 * …
    [Nov 15 13:26:29] Analyzed 3100 files containing 34.93 MB of data so far [
   Nov 15 13:26:29] Analyzed 3200 files containing 36 MB of data so far [Nov 15 
   13:26:31] Error writing value chunk for wfsd_engine (MySQL error: [0] ) [Nov 
   15 23:52:56] Scheduled Wordfence scan starting at Tuesday 15th of November 2016
   11:52:56 PM …
 * Current PHP version is 5.3.26.
 * It sounds like I should try enabling debugging mode then? Thanks for the help!
   🙂
 *  [wfalaa](https://wordpress.org/support/users/wfalaa/)
 * (@wfalaa)
 * [9 years, 6 months ago](https://wordpress.org/support/topic/live-scan-error/#post-8450369)
 * You should not enable “debugging mode” forever, just for debugging purposes like
   that, as it increases the database load.
 * I recommend upgrading PHP to version 5.6 or newer as mentioned in the plugin 
   [requirements page](https://docs.wordfence.com/en/Wordfence_system_requirements#PHP_version),
   and that’s what [WordPress recommends](https://wordpress.org/about/requirements/)
   as well, hopefully this should fix this issue, if you don’t have an option to
   upgrade it via the control panel of your web host, you can contact them asking
   for that.
 * Let me know how it goes,
    Thanks.
 *  Thread Starter [jeeverett](https://wordpress.org/support/users/jeeverett/)
 * (@jeeverett)
 * [9 years, 6 months ago](https://wordpress.org/support/topic/live-scan-error/#post-8455194)
 * Huh, running a scan with debugging mode enabled doesn’t appear to have added 
   much useful information. The only error is still:
 * ..
    [Nov 18 14:47:52] Calling fork() from wordfenceHash with maxExecTime: 15 [
   Nov 18 14:47:52] Entered fork() [Nov 18 14:47:52] Error writing value chunk for
   wfsd_engine (MySQL error: [0] )
 * Does that help at all? 🙂
 * I’m also looking into upgrading the PHP version. Thanks again!

Viewing 4 replies - 1 through 4 (of 4 total)

The topic ‘Live Scan Error’ is closed to new replies.

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 * 4 replies
 * 2 participants
 * Last reply from: [jeeverett](https://wordpress.org/support/users/jeeverett/)
 * Last activity: [9 years, 6 months ago](https://wordpress.org/support/topic/live-scan-error/#post-8455194)
 * Status: not resolved