Fatal error: Declaration of Drupal\Core\Database\Statement::fetchAll($mode = null, $column_index = null, $constructor_arguments = null) must be compatible with PDOStatement::fetchAll(int $mode = PDO::FETCH_DEFAULT, mixed ...$args) in /home4/bluewall/drupal-8.0.0/core/lib/Drupal/Core/Database/Statement.php on line 172