Unhandled exception: AttributeError: 'ConfigPlugin' object has no attribute 'getCmdlineValue'

### Step 1: Please describe your environment

* ZeroNet version: _____
* Operating system: _____
* Web browser: _____
* Tor status: not available/always/disabled
* Opened port: yes/no
* Special configuration: ____

### Step 2: Describe the problem:

#### Steps to reproduce:

1. _____
2. _____
3. _____

#### Observed Results:

* What happened? This could be a screenshot, a description, log output (you can send log/debug.log file to hello@zeronet.io if necessary), etc.

#### Expected Results:

* What did you expect to happen?

The report names only ConfigPlugin.getCmdlineValue and provides no environment, reproduction steps, files, or tests. Start by locating ConfigPlugin and the failing call, then determine how the exception can be reproduced. Done means the reported AttributeError no longer occurs and the affected path has regression coverage.

Do mô hình lập chỉ mục viết ra từ nội dung của issue.