Fatal error: Uncaught Error: Class "WP_Block_Supports" not found in D:\XAMPP\htdocs\UTeM\penerbit\wp-includes\block-supports\background.php:111
Stack trace:
#0 {main}
thrown in D:\XAMPP\htdocs\UTeM\penerbit\wp-includes\block-supports\background.php on line 111