大麦：无法获取演唱会信息

### 路由地址

```routes
/damai/activity/:city/:category/:subcategory/:keyword?
```

### 完整路由地址

```fullroutes
/damai/activity/全部/演唱会/全部/五月天
```

### 相关文档

https://docs.rsshub.app/routes/shopping#%E7%A5%A8%E5%8A%A1%E6%9B%B4%E6%96%B0

### 预期是什么？

正常运行

### 实际发生了什么？

TypeError: Cannot read properties of undefined (reading 'resultData')

### 部署

自建

### 部署相关信息

_No response_

### 额外信息

```shell
TypeError: Cannot read properties of undefined (reading 'resultData')
```

### 这不是重复的 issue

- [x] 我已经搜索了 [现有 issue](https://github.com/DIYgod/RSSHub/issues)，以确保该错误尚未被报告。

Reproduce the full `/damai/activity/全部/演唱会/全部/五月天` route and trace the failing `resultData` access in the Damai route implementation. Done means the route runs without the TypeError and returns the expected concert information.

Written by the indexing model from the issue text.