Fatal error: Uncaught TypeError: call_user_func_array(): Argument #1 ($callback) must be a valid callback, function "_disable_block_editor_for_navigation_post_type" not found or invalid function name in /var/www/vhosts/qferposi.host206.checkdomain.de/unaprofeperfectamenteimperfecta.com/wp-includes/class-wp-hook.php:307 Stack trace: #0 /var/www/vhosts/qferposi.host206.checkdomain.de/unaprofeperfectamenteimperfecta.com/wp-includes/plugin.php(189): WP_Hook->apply_filters(true, Array) #1 /var/www/vhosts/qferposi.host206.checkdomain.de/unaprofeperfectamenteimperfecta.com/wp-content/plugins/tutor/classes/Course_Settings_Tabs.php(16): apply_filters('use_block_edito...', true, 'courses') #2 /var/www/vhosts/qferposi.host206.checkdomain.de/unaprofeperfectamenteimperfecta.com/wp-content/plugins/tutor/classes/Tutor.php(134): TUTOR\Course_Settings_Tabs->__construct() #3 /var/www/vhosts/qferposi.host206.checkdomain.de/unaprofeperfectamenteimperfecta.com/wp-content/plugins/tutor/classes/Tutor.php(66): TUTOR\Tutor->__construct() #4 /var/www/vhosts/qferposi.host206.checkdomain.de/unaprofeperfectamenteimperfecta.com/wp-content/plugins/tutor/tutor.php(112): TUTOR\Tutor::instance() #5 /var/www/vhosts/qferposi.host206.checkdomain.de/unaprofeperfectamenteimperfecta.com/wp-content/plugins/tutor/tutor.php(117): tutor_lms() #6 /var/www/vhosts/qferposi.host206.checkdomain.de/unaprofeperfectamenteimperfecta.com/wp-settings.php(418): include_once('/var/www/vhosts...') #7 /var/www/vhosts/qferposi.host206.checkdomain.de/unaprofeperfectamenteimperfecta.com/wp-config.php(106): require_once('/var/www/vhosts...') #8 /var/www/vhosts/qferposi.host206.checkdomain.de/unaprofeperfectamenteimperfecta.com/wp-load.php(50): require_once('/var/www/vhosts...') #9 /var/www/vhosts/qferposi.host206.checkdomain.de/unaprofeperfectamenteimperfecta.com/wp-blog-header.php(13): require_once('/var/www/vhosts...') #10 /var/www/vhosts/qferposi.host206.checkdomain.de/unaprofeperfectamenteimperfecta.com/index.php(17): require('/var/www/vhosts...') #11 {main} thrown in /var/www/vhosts/qferposi.host206.checkdomain.de/unaprofeperfectamenteimperfecta.com/wp-includes/class-wp-hook.php on line 307