Warning: Trying to access array offset on value of type null in /var/www/html/fliar_site/fliar/list/main3.php on line 55

Fatal error: Uncaught TypeError: array_slice(): Argument #1 ($array) must be of type array, null given in /var/www/html/fliar_site/fliar/list/main3.php:55 Stack trace: #0 /var/www/html/fliar_site/fliar/list/main3.php(55): array_slice() #1 {main} thrown in /var/www/html/fliar_site/fliar/list/main3.php on line 55