Fatal error: Uncaught TypeError: count(): Argument #1 ($value) must be of type Countable|array, null given in /opt/bitnami/apache/htdocs/algorithm/loadcontent.php:20 Stack trace: #0 /opt/bitnami/apache/htdocs/algorithm/interview/index.php(13): include_once() #1 {main} thrown in /opt/bitnami/apache/htdocs/algorithm/loadcontent.php on line 20