Fatal error: Uncaught TypeError: call_user_func_array(): Argument #1 ($callback) must be a valid callback, function "create_post_type" not found or invalid function name in /var/www/vhosts/ugaatbouwen.com/httpdocs/wp-includes/class-wp-hook.php:324 Stack trace: #0 /var/www/vhosts/ugaatbouwen.com/httpdocs/wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters() #1 /var/www/vhosts/ugaatbouwen.com/httpdocs/wp-includes/plugin.php(517): WP_Hook->do_action() #2 /var/www/vhosts/ugaatbouwen.com/httpdocs/wp-settings.php(643): do_action() #3 /var/www/vhosts/ugaatbouwen.com/httpdocs/wp-config.php(108): require_once('...') #4 /var/www/vhosts/ugaatbouwen.com/httpdocs/wp-load.php(50): require_once('...') #5 /var/www/vhosts/ugaatbouwen.com/httpdocs/wp-blog-header.php(13): require_once('...') #6 /var/www/vhosts/ugaatbouwen.com/httpdocs/index.php(20): require('...') #7 {main} thrown in /var/www/vhosts/ugaatbouwen.com/httpdocs/wp-includes/class-wp-hook.php on line 324
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