Failed to execute script boot

### Step 1: Please describe your environment

* ZeroNet version: ___0.7.1 (rev4223)__
* Operating system: __Windows 10 pro version_1903_OS build:18362.535_
* Web browser: __ Tor browser 9.0.5___
* Tor status: always
* Opened port: no
* Special configuration: ____

### Step 2: Describe the problem:
window crops up 'failed to execute script boot'
#### Steps to reproduce:

1. ___visit this zite:http://127.0.0.1:43110/13eFkhbXXQcJqd729zRLL9tMxxhz9d4UA6/__
2. _____
3. _____

#### Observed Results:

#### Expected Results:

* What did you expect to happen?

restart without opening a browser, or open tor browser

Start by reproducing the “failed to execute script boot” error on Windows 10 with ZeroNet 0.7.1 and the stated Tor Browser setup, using the provided zite URL and startup sequence. The issue is done when ZeroNet can restart without incorrectly opening a browser, or opens Tor Browser as expected; no source file or test is identified in the report.

索引モデルが issue の本文から書いたものです。