Fatal error: Uncaught MongoDB\Driver\Exception\InvalidArgumentException: Error parsing ObjectId string: 0 in /workspace/a/index.php:7
Stack trace:
#0 /workspace/a/index.php(7): MongoDB\BSON\ObjectId->__construct('0')
#1 /workspace/index.php(13): include('/workspace/a/in...')
#2 {main}
  thrown in /workspace/a/index.php on line 7