Fatal error: Uncaught TypeError: sort(): Argument #1 ($array) must be of type array, null given in /var/www/html/rss/bal_sheet.php:297 Stack trace: #0 /var/www/html/rss/bal_sheet.php(297): sort() #1 {main} thrown in /var/www/html/rss/bal_sheet.php on line 297