Fatal error: Uncaught TypeError: call_user_func_array(): Argument #1 ($callback) must be a valid callback, function "wp_initialize_site_preview_hooks" not found or invalid function name in /mnt/web215/d2/92/53443192/htdocs/2023.heigenmoser-personal.com/wp-includes/class-wp-hook.php:333
Stack trace:
#0 /mnt/web215/d2/92/53443192/htdocs/2023.heigenmoser-personal.com/wp-includes/class-wp-hook.php(358): WP_Hook->apply_filters()
#1 /mnt/web215/d2/92/53443192/htdocs/2023.heigenmoser-personal.com/wp-includes/plugin.php(517): WP_Hook->do_action()
#2 /mnt/web215/d2/92/53443192/htdocs/2023.heigenmoser-personal.com/wp-settings.php(727): do_action()
#3 /mnt/web215/d2/92/53443192/htdocs/2023.heigenmoser-personal.com/wp-config.php(123): require_once('...')
#4 /mnt/web215/d2/92/53443192/htdocs/2023.heigenmoser-personal.com/wp-load.php(50): require_once('...')
#5 /mnt/web215/d2/92/53443192/htdocs/2023.heigenmoser-personal.com/wp-blog-header.php(14): require_once('...')
#6 /mnt/web215/d2/92/53443192/htdocs/2023.heigenmoser-personal.com/index.php(1): require('...')
#7 {main}
  thrown in /mnt/web215/d2/92/53443192/htdocs/2023.heigenmoser-personal.com/wp-includes/class-wp-hook.php on line 333