fatal error on activate - How-to and Troubleshooting https://wpforo.com/community/how-to-and-troubleshooting-2/fatal-error-on-activate/ Discussion Board en-US Fri, 13 Mar 2026 10:29:39 +0000 wpForo 60 RE: fatal error on activate https://wpforo.com/community/how-to-and-troubleshooting-2/fatal-error-on-activate/#post-55734 Wed, 21 Jul 2021 18:21:16 +0000 Hi @eric-scholz,

Please make sure the parent wpForo forum plugin is properly active, make sure you use the latest wpForo version. For further support, please move this topic to gVectors Support forum: https://gvectors.com/forum/

]]> How-to and Troubleshooting Robert https://wpforo.com/community/how-to-and-troubleshooting-2/fatal-error-on-activate/#post-55734 fatal error on activate https://wpforo.com/community/how-to-and-troubleshooting-2/fatal-error-on-activate/#post-55726 Wed, 21 Jul 2021 15:31:04 +0000 I am getting fatal error on activate with the latest purchased version. I have tried on a couple diferent servers with same problem.

 


Fatal error: Uncaught Error: Call to undefined function WPF() in /hermes/bosnaweb28a/b903/dom.leslieiwg65520/public_html/wordpress/wp-content/plugins/wpforo-private-messages/includes/functions.php:41 Stack trace: #0 /hermes/bosnaweb28a/b903/dom.leslieiwg65520/public_html/wordpress/wp-content/plugins/wpforo-private-messages/includes/functions.php(34): wpforopm_activation() #1 /hermes/bosnaweb28a/b903/dom.leslieiwg65520/public_html/wordpress/wp-includes/class-wp-hook.php(303): do_wpforopm_activation('') #2 /hermes/bosnaweb28a/b903/dom.leslieiwg65520/public_html/wordpress/wp-includes/class-wp-hook.php(327): WP_Hook->apply_filters('', Array) #3 /hermes/bosnaweb28a/b903/dom.leslieiwg65520/public_html/wordpress/wp-includes/plugin.php(470): WP_Hook->do_action(Array) #4 /hermes/bosnaweb28a/b903/dom.leslieiwg65520/public_html/wordpress/wp-admin/plugins.php(193): do_action('activate_wpforo...') #5 {main} thrown in /hermes/bosnaweb28a/b903/dom.leslieiwg65520/public_html/wordpress/wp-content/plugins/wpforo-private-messages/includes/functions.php on line 41

]]> How-to and Troubleshooting eric.scholz https://wpforo.com/community/how-to-and-troubleshooting-2/fatal-error-on-activate/#post-55726