升级后结算无法进行

升级到最新版2.9.1后，点击结算，出现如下错误：

Setting unknown property: fecbbc\app\appfront\modules\Checkout\block\onepage\Index::_default_address

1. in /vendor/yiisoft/yii2/base/BaseObject.php at line 163 public function __set($name, $value) {

    $setter = 'set' . $name;
    if (method_exists($this, $setter)) {
        $this->$setter($value);
    } elseif (method_exists($this, 'get' . $name)) {
        throw new InvalidCallException('Setting read-only property: ' . get_class($this) . '::' . $name);
    } else {
   

   #163 throw new UnknownPropertyException('Setting unknown property: ' . get_class($this) . '::' . $name);

    }
   

   }