Fatal error: Uncaught Error: Call to undefined function add_theme_support() in /mnt/web523/b3/46/5230546/htdocs/wp-includes/block-patterns.php:9
Stack trace:
#0 /mnt/web523/b3/46/5230546/htdocs/wp-settings.php(294): require()
#1 /mnt/web523/b3/46/5230546/htdocs/wp-config.php(89): require_once('/mnt/web523/b3/...')
#2 /mnt/web523/b3/46/5230546/htdocs/wp-load.php(37): require_once('/mnt/web523/b3/...')
#3 /mnt/web523/b3/46/5230546/htdocs/wp-blog-header.php(13): require_once('/mnt/web523/b3/...')
#4 /mnt/web523/b3/46/5230546/htdocs/index.php(17): require('/mnt/web523/b3/...')
#5 {main}
  thrown in /mnt/web523/b3/46/5230546/htdocs/wp-includes/block-patterns.php on line 9