Fatal error: Uncaught Error: Call to undefined function wp_register_block_metadata_collection() in /customers/1/3/6/skba-tech.be/httpd.www/wp-includes/blocks/index.php:170
Stack trace:
#0 /customers/1/3/6/skba-tech.be/httpd.www/wp-includes/class-wp-hook.php(324): wp_register_core_block_metadata_collection('')
#1 /customers/1/3/6/skba-tech.be/httpd.www/wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters(NULL, Array)
#2 /customers/1/3/6/skba-tech.be/httpd.www/wp-includes/plugin.php(517): WP_Hook->do_action(Array)
#3 /customers/1/3/6/skba-tech.be/httpd.www/wp-settings.php(700): do_action('init')
#4 /customers/1/3/6/skba-tech.be/httpd.www/wp-config.php(113): require_once('/customers/1/3/...')
#5 /customers/1/3/6/skba-tech.be/httpd.www/wp-load.php(50): require_once('/customers/1/3/...')
#6 /customers/1/3/6/skba-tech.be/httpd.www/wp-blog-header.php(13): require_once('/customers/1/3/...')
#7 /customers/1/3/6/skba-tech.be/httpd.www/index.php(17): require('/customers/1/3/...')
#8 {main}
  thrown in /customers/1/3/6/skba-tech.be/httpd.www/wp-includes/blocks/index.php on line 170