Fatal error: Uncaught TypeError: extract(): Argument #1 ($array) must be of type array, null given in /var/www/html/steyn/music/series.php:13 Stack trace: #0 /var/www/html/steyn/music/series.php(13): extract(NULL) #1 {main} thrown in /var/www/html/steyn/music/series.php on line 13