我尝试添加以安装某些程序的任何存储库都遇到问题。在下面的情况下，我尝试使用以下命令行添加存储库：
sudo add-apt-repository ppa:nilarimogard/webupd8 -y
以安装 WoeUSB 程序。
错误输出如下：
Traceback (most recent call last):
File "/usr/lib/python3/dist-packages/softwareproperties/ppa.py", line 335, in get_ppa_info
ret = get_ppa_info_from_lp(user, ppa)
File "/usr/lib/python3/dist-packages/softwareproperties/ppa.py", line 92, in get_ppa_info_from_lp
return get_info_from_lp(lp_url)
File "/usr/lib/python3/dist-packages/softwareproperties/ppa.py", line 88, in get_info_from_lp
return _get_https_content_py3(lp_url)
File "/usr/lib/python3/dist-packages/softwareproperties/ppa.py", line 110, in _get_https_content_py3
lp_page = urllib.request.urlopen(request, cafile=LAUNCHPAD_PPA_CERT)
File "/usr/lib/python3.5/urllib/request.py", line 153, in urlopen
capath=capath)
File "/usr/lib/python3.5/ssl.py", line 470, in create_default_context
context.load_verify_locations(cafile, capath, cadata)
ssl.SSLError: unknown error (_ssl.c:3053)
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/usr/bin/add-apt-repository", line 122, in <module>
shortcut = shortcut_handler(line)
File "/usr/lib/python3/dist-packages/softwareproperties/SoftwareProperties.py", line 864, in shortcut_handler
ret = factory(shortcut)
File "/usr/lib/python3/dist-packages/softwareproperties/ppa.py", line 407, in shortcut_handler
return PPAShortcutHandler(shortcut)
File "/usr/lib/python3/dist-packages/softwareproperties/ppa.py", line 364, in __init__
info = get_ppa_info(self.shortcut)
File "/usr/lib/python3/dist-packages/softwareproperties/ppa.py", line 347, in get_ppa_info
_get_suggested_ppa_message(user, ppa))
File "/usr/lib/python3/dist-packages/softwareproperties/ppa.py", line 304, in _get_suggested_ppa_message
lp_user = get_info_from_lp(LAUNCHPAD_USER_API % user)
File "/usr/lib/python3/dist-packages/softwareproperties/ppa.py", line 88, in get_info_from_lp
return _get_https_content_py3(lp_url)
File "/usr/lib/python3/dist-packages/softwareproperties/ppa.py", line 110, in _get_https_content_py3
lp_page = urllib.request.urlopen(request, cafile=LAUNCHPAD_PPA_CERT)
File "/usr/lib/python3.5/urllib/request.py", line 153, in urlopen
capath=capath)
File "/usr/lib/python3.5/ssl.py", line 470, in create_default_context
context.load_verify_locations(cafile, capath, cadata)
ssl.SSLError: unknown error (_ssl.c:3053)
我的操作系统是 Ubuntu 16.04 64 位。
如果有人能告诉我我的存储库出了什么问题以及如何修复它，我将非常感激。
另外，我无法通过中央Ubuntu安装任何东西，程序开始安装并且没有给出任何出错的警告。
更新
这是我的输出sudo apt-get update：
Lendo listas de pacotes... Pronto
E: Não foi possível obter trava /var/lib/apt/lists/lock - open (11: Recurso temporariamente indisponível)
E: Impossível criar acesso exclusivo ao directório /var/lib/apt/lists/
W: Target Packages (main/binary-amd64/Packages) is configured multiple times in /etc/apt/sources.list:53 and /etc/apt/sources.list.d/google-chrome.list:3
W: Target Packages (main/binary-all/Packages) is configured multiple times in /etc/apt/sources.list:53 and /etc/apt/sources.list.d/google-chrome.list:3
W: Target Translations (main/i18n/Translation-pt_BR) is configured multiple times in /etc/apt/sources.list:53 and /etc/apt/sources.list.d/google-chrome.list:3
W: Target Translations (main/i18n/Translation-pt) is configured multiple times in /etc/apt/sources.list:53 and /etc/apt/sources.list.d/google-chrome.list:3
W: Target Translations (main/i18n/Translation-en) is configured multiple times in /etc/apt/sources.list:53 and /etc/apt/sources.list.d/google-chrome.list:3
W: Target DEP-11 (main/dep11/Components-amd64.yml) is configured multiple times in /etc/apt/sources.list:53 and /etc/apt/sources.list.d/google-chrome.list:3
W: Target DEP-11-icons (main/dep11/icons-64x64.tar) is configured multiple times in /etc/apt/sources.list:53 and /etc/apt/sources.list.d/google-chrome.list:3