Fatal error: Uncaught Error: Class 'WP_Post_Type' not found in /customers/a/1/8/thijsmaessen.nl/httpd.www/groen-onderwijs/wp-includes/post.php:1194 Stack trace: #0 /customers/a/1/8/thijsmaessen.nl/httpd.www/groen-onderwijs/wp-includes/post.php(38): register_post_type('post', Array) #1 /customers/a/1/8/thijsmaessen.nl/httpd.www/groen-onderwijs/wp-settings.php(247): create_initial_post_types() #2 /customers/a/1/8/thijsmaessen.nl/httpd.www/groen-onderwijs/wp-config.php(96): require_once('/customers/a/1/...') #3 /customers/a/1/8/thijsmaessen.nl/httpd.www/groen-onderwijs/wp-load.php(37): require_once('/customers/a/1/...') #4 /customers/a/1/8/thijsmaessen.nl/httpd.www/groen-onderwijs/wp-blog-header.php(13): require_once('/customers/a/1/...') #5 /customers/a/1/8/thijsmaessen.nl/httpd.www/groen-onderwijs/index.php(17): require('/customers/a/1/...') #6 {main} thrown in /customers/a/1/8/thijsmaessen.nl/httpd.www/groen-onderwijs/wp-includes/post.php on line 1194