【已解答】免费版8.0 安装一键迁移 失败

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面板、插件版本：免费版   8.0.0

系统版本：centos7.9

问题描述：安装宝塔一键迁移API版本 失败

相关截图（日志、错误）：

Traceback (most recent call last):
  File "class/panelPlugin.py", line 572, in __download_plugin
    headers_total_size = int(download_res.headers['File-size'])
  File "/www/server/panel/pyenv/lib/python3.7/site-packages/requests/structures.py", line 52, in __getitem__
    return self._store[key.lower()][1]
KeyError: 'file-size'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/www/server/panel/BTPanel/__init__.py", line 2016, in publicObject
    res = run_obj.run(toObject, defs, get)
  File "/www/server/panel/BTPanel/__init__.py", line 1963, in run
    result = getattr(toObject, get.action)(get)
  File "class/panelPlugin.py", line 818, in install_plugin
    result = self.install_sync(pluginInfo, get)
  File "class/panelPlugin.py", line 868, in install_sync
    return self.__install_plugin(pluginInfo['name'], get.version)
  File "class/panelPlugin.py", line 95, in __install_plugin
    filename = self.__download_plugin(upgrade_plugin_name, upgrade_version)
  File "class/panelPlugin.py", line 576, in __download_plugin
    public.error_conn_cloud(download_res.text))
public.PanelError: 面板运行时发生错误: 面板运行时发生错误: 抱歉，连接云端服务器失败! - 404 Not Found

使用不了是否有什么报错呢
宝塔一键迁移API需要面板版本在v9.6.0以上才能正常使用的哈
您可以联系我司官方客服经理协助处理

看来是用不了，我看了是云端没有安装包，造成的。唉，官方客服能协助旧版本上安装这个插件吗？