Fatal error: Uncaught Error: Call to a member function get() on null in /homepages/7/d686322489/htdocs/PRUEBA/wordpress/wp-content/plugins/learnpress/inc/custom-post-types/course.php:158 Stack trace: #0 /homepages/7/d686322489/htdocs/PRUEBA/wordpress/wp-includes/class-wp-hook.php(307): LP_Course_Post_Type->register_taxonomy('') #1 /homepages/7/d686322489/htdocs/PRUEBA/wordpress/wp-includes/class-wp-hook.php(331): WP_Hook->apply_filters(NULL, Array) #2 /homepages/7/d686322489/htdocs/PRUEBA/wordpress/wp-includes/plugin.php(474): WP_Hook->do_action(Array) #3 /homepages/7/d686322489/htdocs/PRUEBA/wordpress/wp-settings.php(587): do_action('init') #4 /homepages/7/d686322489/htdocs/PRUEBA/wordpress/wp-config.php(98): require_once('/homepages/7/d6...') #5 /homepages/7/d686322489/htdocs/PRUEBA/wordpress/wp-load.php(50): require_once('/homepages/7/d6...') #6 /homepages/7/d686322489/htdocs/PRUEBA/wordpress/wp-blog-header.php(13): require_once('/homepages/7/d6...') #7 /homepages/7/d686322489/htdocs/PRUEBA/wordpress/index.php(17): req in /homepages/7/d686322489/htdocs/PRUEBA/wordpress/wp-content/plugins/learnpress/inc/custom-post-types/course.php on line 158