Title: Fatal error when PRO is enabled Last modified: February 19, 2024 --- # Fatal error when PRO is enabled * Resolved [johannesdb](https://wordpress.org/support/users/johannesdb/) * (@johannesdb) * [2 years, 3 months ago](https://wordpress.org/support/topic/fatal-error-when-pro-is-enabled/) * Updating to the new version results in a fatal error when the pro version is enabled. If I disable the pro version, the plugin works but the layouts, I have created, shows no results. * Rolling back to 2.7.2.1 works. * Is there a new update to the pro version? And will that be able to get via update or is a manual update needed? * The page I need help with: _[[log in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2Ffatal-error-when-pro-is-enabled%2F%3Foutput_format%3Dmd&locale=en_US) to see the link]_ Viewing 5 replies - 1 through 5 (of 5 total) * Plugin Author [Trusty Plugins](https://wordpress.org/support/users/trustyplugins/) * (@trustyplugins) * [2 years, 3 months ago](https://wordpress.org/support/topic/fatal-error-when-pro-is-enabled/#post-17435779) * Hi , Please debug the issue at your end at let us know. On our official website, Both plugins are working fine. [https://caf.trustyplugins.com/multiple-taxonomy-filter/](https://caf.trustyplugins.com/multiple-taxonomy-filter/) Free version : 2.7.2.3Pro version : 8.7.6Looking forward.Thanks,Trusty Plugins Team * Thread Starter [johannesdb](https://wordpress.org/support/users/johannesdb/) * (@johannesdb) * [2 years, 3 months ago](https://wordpress.org/support/topic/fatal-error-when-pro-is-enabled/#post-17436115) * I get this fatal error with those two versions enabled: * **Fatal error**: Uncaught Error: Class “CategoryAjaxFilterProBase” not found in /home/ugdata/outdoor365.dk/wp-content/plugins/category-ajax-filter-pro/caf- pro.php:42 Stack trace: #0 /home/ugdata/outdoor365.dk/wp-content/plugins/category- ajax-filter/admin/functions.php(394): TC_CAF_PRO->check_license() #1 /home/ugdata/ outdoor365.dk/wp-includes/class-wp-hook.php(326): CAF_load_scripts->conditionally_add_scripts_and_styles()# 2 /home/ugdata/outdoor365.dk/wp-includes/plugin.php(256): WP_Hook->apply_filters()# 3 /home/ugdata/outdoor365.dk/wp-includes/class-wp-query.php(3530): apply_filters_ref_array()# 4 /home/ugdata/outdoor365.dk/wp-includes/class-wp-query.php(3824): WP_Query-> get_posts() #5 /home/ugdata/outdoor365.dk/wp-includes/post.php(6118): WP_Query- >query() #6 /home/ugdata/outdoor365.dk/wp-content/plugins/divi-pixel/includes/ options/settings.php(545): get_pages() #7 /home/ugdata/outdoor365.dk/wp-content/ plugins/divi-pixel/includes/options/settings.php(735): DiviPixel\DIPI_Settings- >get_wp_pages_list() #8 /home/ugdata/outdoor365.dk/wp-content/plugins/divi-pixel/ includes/options/settings.php(578): DiviPixel\DIPI_Settings->create_general_tab_fields()# 9 /home/ugdata/outdoor365.dk/wp-content/plugins/divi-pixel/includes/options/settings. php(177): DiviPixel\DIPI_Settings->create_fields() #10 /home/ugdata/outdoor365. dk/wp-content/plugins/divi-pixel/includes/options/settings.php(90): DiviPixel\ DIPI_Settings->get_fields() #11 /home/ugdata/outdoor365.dk/wp-content/plugins/ divi-pixel/includes/plugin.php(178): DiviPixel\DIPI_Settings::get_option() #12/ home/ugdata/outdoor365.dk/wp-content/plugins/divi-pixel/includes/plugin.php(11): DiviPixel\DIPI_Plugin->load_dependencies() #13 /home/ugdata/outdoor365.dk/wp- content/plugins/divi-pixel/includes/plugin.php(319): DiviPixel\DIPI_Plugin->__construct()# 14 /home/ugdata/outdoor365.dk/wp-content/plugins/divi-pixel/divi-pixel.php(37): require_once(‘/home/ugdata/ou…’) #15 /home/ugdata/outdoor365.dk/wp-settings.php( 473): include_once(‘/home/ugdata/ou…’) #16 /home/ugdata/outdoor365.dk/wp-config. php(104): require_once(‘/home/ugdata/ou…’) #17 /home/ugdata/outdoor365.dk/wp- load.php(50): require_once(‘/home/ugdata/ou…’) #18 /home/ugdata/outdoor365.dk/ wp-admin/admin.php(34): require_once(‘/home/ugdata/ou…’) #19 /home/ugdata/outdoor365. dk/wp-admin/post.php(12): require_once(‘/home/ugdata/ou…’) #20 {main} thrown in **/home/ugdata/outdoor365.dk/wp-content/plugins/category-ajax-filter-pro/caf- pro.php** on line **42** * Thread Starter [johannesdb](https://wordpress.org/support/users/johannesdb/) * (@johannesdb) * [2 years, 3 months ago](https://wordpress.org/support/topic/fatal-error-when-pro-is-enabled/#post-17436117) * And on the front end I get: Posts found: error * Plugin Author [Trusty Plugins](https://wordpress.org/support/users/trustyplugins/) * (@trustyplugins) * [2 years, 3 months ago](https://wordpress.org/support/topic/fatal-error-when-pro-is-enabled/#post-17436290) * Hi , Please update both plugins to the latest version. We just released an update to the PRO version.Free : 2.7.2.3Pro : 8.7.7It should be resolved with this update. Please check and let us know.Thanks,Trusty Plugins Team * Thread Starter [johannesdb](https://wordpress.org/support/users/johannesdb/) * (@johannesdb) * [2 years, 3 months ago](https://wordpress.org/support/topic/fatal-error-when-pro-is-enabled/#post-17436597) * Hi * that seems to work better 🙂 Viewing 5 replies - 1 through 5 (of 5 total) The topic ‘Fatal error when PRO is enabled’ is closed to new replies. * ![](https://ps.w.org/category-ajax-filter/assets/icon-256x256.png?rev=2410607) * [Category AJAX Filter — Advanced Filter for Posts & Custom Post Types](https://wordpress.org/plugins/category-ajax-filter/) * [Frequently Asked Questions](https://wordpress.org/plugins/category-ajax-filter/#faq) * [Support Threads](https://wordpress.org/support/plugin/category-ajax-filter/) * [Active Topics](https://wordpress.org/support/plugin/category-ajax-filter/active/) * [Unresolved Topics](https://wordpress.org/support/plugin/category-ajax-filter/unresolved/) * [Reviews](https://wordpress.org/support/plugin/category-ajax-filter/reviews/) * 5 replies * 2 participants * Last reply from: [johannesdb](https://wordpress.org/support/users/johannesdb/) * Last activity: [2 years, 3 months ago](https://wordpress.org/support/topic/fatal-error-when-pro-is-enabled/#post-17436597) * Status: resolved