Fatal error: Uncaught MongoDB\Driver\Exception\InvalidArgumentException: Error parsing ObjectId string: 0 in /var/www/html/candidate-chart/chart-analysis.php:25 Stack trace: #0 /var/www/html/candidate-chart/chart-analysis.php(25): MongoDB\BSON\ObjectId->__construct() #1 /var/www/html/candidate-chart/index.php(21): include('...') #2 {main} thrown in /var/www/html/candidate-chart/chart-analysis.php on line 25