Title: Plugins not activating
Last modified: November 29, 2024

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# Plugins not activating

 *  Resolved [mikevanzyl](https://wordpress.org/support/users/mikevanzyl/)
 * (@mikevanzyl)
 * [1 year, 6 months ago](https://wordpress.org/support/topic/plugins-not-activating-7/)
 * Fatal error: Uncaught TypeError: mysqli_num_fields(): Argument #1 ($result) must
   be of type mysqli_result, bool given in /usr/www/users/vanhewgshu/wp-content/
   plugins/w3-total-cache/Enterprise_Dbcache_WpdbInjection_Cluster.php:612 Stack
   trace: #0 /usr/www/users/vanhewgshu/wp-content/plugins/w3-total-cache/Enterprise_Dbcache_WpdbInjection_Cluster.
   php(612): mysqli_num_fields(true) #1 /usr/www/users/vanhewgshu/wp-content/plugins/
   w3-total-cache/DbCache_WpdbNew.php(122): W3TC\Enterprise_Dbcache_WpdbInjection_Cluster-
   >query(‘CREATE TABLE I…’) #2 /usr/www/users/vanhewgshu/wp-content/plugins/w3-
   total-cache/DbCache_WpdbNew.php(408): W3TC\DbCache_WpdbNew->query(‘CREATE TABLE
   I…’) #3 /usr/www/users/vanhewgshu/wp-content/plugins/w3-total-cache/DbCache_WpdbInjection_QueryCaching.
   php(201): W3TC\_CallUnderlying->query(‘CREATE TABLE I…’) #4 /usr/www/users/vanhewgshu/
   wp-content/plugins/w3-total-cache/DbCache_WpdbNew.php(122): W3TC\DbCache_WpdbInjection_QueryCaching-
   >query(‘CREATE TABLE I…’) #5 /usr/www/users/vanhewgshu/wp-content/plugins/visitors-
   traffic-real-time-statistics/functions.php(1024): W3TC\DbCache_WpdbNew->query(‘
   CREATE TABLE I…’) #6 /usr/www/users/vanhewgshu/wp-content/plugins/visitors-traffic-
   real-time-statistics/init.php(39): ahcfree_add_settings() #7 /usr/www/users/vanhewgshu/
   wp-content/plugins/visitors-traffic-real-time-statistics/Visitors-Traffic-Real-
   Time-Statistics.php(17): require_once(‘/usr/www/users/…’) #8 /usr/www/users/vanhewgshu/
   wp-admin/includes/plugin.php(2387): include_once(‘/usr/www/users/…’) #9 /usr/
   www/users/vanhewgshu/wp-admin/plugins.php(194): plugin_sandbox_scrape(‘visitors-
   traffi…’) #10 {main} thrown in /usr/www/users/vanhewgshu/wp-content/plugins/w3-
   total-cache/Enterprise_Dbcache_WpdbInjection_Cluster.php on line 612
 * The page I need help with: _[[log in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2Fplugins-not-activating-7%2F%3Foutput_format%3Dmd&locale=en_US)
   to see the link]_

Viewing 2 replies - 1 through 2 (of 2 total)

 *  Moderator [threadi](https://wordpress.org/support/users/threadi/)
 * (@threadi)
 * [1 year, 6 months ago](https://wordpress.org/support/topic/plugins-not-activating-7/#post-18169112)
 * The error occurs in the W3 Total Cache plugin. I would recommend you to contact
   their support forum to solve it: [https://wordpress.org/support/plugin/w3-total-cache/](https://wordpress.org/support/plugin/w3-total-cache/)
 *  Moderator [Support Moderator](https://wordpress.org/support/users/moderator/)
 * (@moderator)
 * [1 year, 6 months ago](https://wordpress.org/support/topic/plugins-not-activating-7/#post-18170001)
 * Thread continues at [https://wordpress.org/support/topic/failed-to-retrieve-a-response-please-reload-the-page-to-try-again-2/](https://wordpress.org/support/topic/failed-to-retrieve-a-response-please-reload-the-page-to-try-again-2/)

Viewing 2 replies - 1 through 2 (of 2 total)

The topic ‘Plugins not activating’ is closed to new replies.

 * In: [Accessibility](https://wordpress.org/support/forum/accessibility/)
 * 2 replies
 * 2 participants
 * Last reply from: [Support Moderator](https://wordpress.org/support/users/moderator/)
 * Last activity: [1 year, 6 months ago](https://wordpress.org/support/topic/plugins-not-activating-7/#post-18170001)
 * Status: resolved

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