【待反馈】安装 宝塔邮局管理器 时出错

出错了，面板运行时发生错误！            面板运行时发生错误: 软件包下载失败，请重试   
    REQUEST_DATE: 2022-10-21 21:34:15 PAN_VERSION: 7.9.4  OS_VERSION: CentOS Stream 8 x86_64(Py3.7.9) REMOTE_ADDR: 27.12.67.38 REQUEST_URI: POST /plugin?action=install_pluginREQUEST_FORM: {'sName': 'mail_sys', 'version': '4', 'min_version': '7'}  USER_AGENT: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:103.0) Gecko/20100101 Firefox/103.0    Traceback (most recent call last):  File "/www/server/panel/BTPanel/__init__.py", line 1826, in publicObject    return run_exec().run(toObject, defs, get)  File "/www/server/panel/BTPanel/__init__.py", line 1778, in run    result = getattr(toObject,get.action)(get)  File "class/panelPlugin.py", line 744, in install_plugin    result = self.install_sync(pluginInfo,get)  File "class/panelPlugin.py", line 788, in install_sync    return self.__install_plugin(pluginInfo['name'], get.version)  File "class/panelPlugin.py", line 90, in __install_plugin    filename = self.__download_plugin(upgrade_plugin_name,upgrade_version)  File "class/panelPlugin.py", line 538, in __download_plugin    raise public.PanelError('软件包下载失败，请重试')public.PanelError: 面板运行时发生错误: 软件包下载失败，请重试