[Bug]: The live example Alias (https://alias.agentscope.io/) seems not working.

**Describe the bug**
The live example Alias (https://alias.agentscope.io/) seems not working.

I was browsing the examples and tutorials of AgentScope: https://agentscope.io/samples/

**To Reproduce**
Steps to reproduce the behavior:

1. Visit https://agentscope.io/samples/
2. Click "Live" button of Alias
3. The page failed with `504 Gateway Time-out` error

**Expected behavior**
A clear and concise description of what you expected to happen.

**Error messages**

```
504 Gateway Time-out
```

**Environment (please complete the following information):**

- Browser: Chrome
- OS: macos