How to solve Undefined array key “userid”? [closed]

I am getting Undefined array key “userid” error but user id field exist in database I am trying to get userid by following is my function where I am trying to get user id

 function checkAuthStatusAndReturnUserID($writeDB) {

  if(!isset($_SERVER['HTTP_AUTHORIZATION']) || strlen($_SERVER['HTTP_AUTHORIZATION']) < 1) {

    $message = null;

    if(!isset($_SERVER['HTTP_AUTHORIZATION'])) {
      $message = "Access token is missing from the header";
    } else {
      if(strlen($_SERVER['HTTP_AUTHORIZATION']) < 1) {
          $message = "Access token cannot be blank";
      }
    }

    sendResponse(401, false, $message);
  }

  // get supplied access token from authorisation header - used for delete (log out) and patch (refresh)
  $accesstoken = $_SERVER['HTTP_AUTHORIZATION'];

  try {
    // create db query to check access token is equal to the one provided
    $query = $writeDB->prepare('select adminsession.userid as usrid, accesstokenexpiry  from adminsession, admin where adminsession.userid = admin.id and accesstoken = :accesstoken');
    $query->bindParam(':accesstoken', $accesstoken, PDO::PARAM_STR);
    $query->execute();


    $rowCount = $query->rowCount();

    if($rowCount === 0) {
      // send json error response using function for unsuccessful log out response
      sendResponse(401, false, "Invalid access token $accesstoken");
    }


    $row = $query->fetch(PDO::FETCH_ASSOC);


    $returned_userid = $row['userid'];
    $returned_accesstokenexpiry = $row['accesstokenexpiry'];

you can see in the above image userid column exists