Fatal error: Uncaught TypeError: call_user_func_array(): Argument #1 ($callback) must be a valid callback, function "wp_enable_block_templates" not found or invalid function name in /customers/8/9/4/sydvastsomaliska.org/httpd.www/wp-includes/class-wp-hook.php:308
Stack trace:
#0 /customers/8/9/4/sydvastsomaliska.org/httpd.www/wp-includes/class-wp-hook.php(332): WP_Hook->apply_filters(NULL, Array)
#1 /customers/8/9/4/sydvastsomaliska.org/httpd.www/wp-includes/plugin.php(517): WP_Hook->do_action(Array)
#2 /customers/8/9/4/sydvastsomaliska.org/httpd.www/wp-settings.php(492): do_action('setup_theme')
#3 /customers/8/9/4/sydvastsomaliska.org/httpd.www/wp-config.php(80): require_once('/customers/8/9/...')
#4 /customers/8/9/4/sydvastsomaliska.org/httpd.www/wp-load.php(37): require_once('/customers/8/9/...')
#5 /customers/8/9/4/sydvastsomaliska.org/httpd.www/wp-blog-header.php(13): require_once('/customers/8/9/...')
#6 /customers/8/9/4/sydvastsomaliska.org/httpd.www/index.php(17): require('/customers/8/9/...')
#7 {main}
  thrown in /customers/8/9/4/sydvastsomaliska.org/httpd.www/wp-includes/class-wp-hook.php on line 308