Fatal error: Uncaught TypeError: mysqli_prepare(): Argument #1 ($mysql) must be of type mysqli, DB given in /home/song/htdocs/www.song.lk/private/oop/class_pro.php:232 Stack trace: #0 /home/song/htdocs/www.song.lk/private/oop/class_pro.php(232): mysqli_prepare() #1 /home/song/htdocs/www.song.lk/program/download/index.php(24): Pro->get_download_song() #2 {main} thrown in /home/song/htdocs/www.song.lk/private/oop/class_pro.php on line 232