python - Error message when trying to add PPA in Ubuntu 24.04 Server - Stack Overflow

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when trying to add the ppa ppa:ondrej/php on Ubuntu 24.04 server via terminal command I get a python error message.

I'm trying to add it via the command

sudo add-apt-repository ppa:ondrej/php

This is the error message:

Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/httplib2/__init__.py", line 1343, in _conn_request
    conn.connect()
  File "/usr/lib/python3/dist-packages/httplib2/__init__.py", line 1119, in connect
    address_info = socket.getaddrinfo(host, port, 0, socket.SOCK_STREAM)
                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.12/socket.py", line 963, in getaddrinfo
    for res in _socket.getaddrinfo(host, port, family, type, proto, flags):
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
socket.gaierror: [Errno -3] Temporary failure in name resolution

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/bin/add-apt-repository", line 452, in <module>
    sys.exit(0 if addaptrepo.main() else 1)
                  ^^^^^^^^^^^^^^^^^
  File "/usr/bin/add-apt-repository", line 435, in main
    shortcut = handler(source, **shortcut_params)
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/softwareproperties/shortcuts.py", line 40, in shortcut_handler
    return handler(shortcut, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/softwareproperties/ppa.py", line 89, in __init__
    if self.lpppa.publish_debug_symbols:
       ^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/softwareproperties/ppa.py", line 133, in lpppa
    self._lpppa = self.lpteam.getPPAByName(name=self.ppaname)
                  ^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/softwareproperties/ppa.py", line 120, in lpteam
    self._lpteam = self.lp.people(self.teamname)
                   ^^^^^^^
  File "/usr/lib/python3/dist-packages/softwareproperties/ppa.py", line 111, in lp
    self._lp = login_func("%s.%s" % (self.__module__, self.__class__.__name__),
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/launchpadlib/launchpad.py", line 494, in login_anonymously
    return cls(
           ^^^^
  File "/usr/lib/python3/dist-packages/launchpadlib/launchpad.py", line 230, in __init__
    super(Launchpad, self).__init__(
  File "/usr/lib/python3/dist-packages/lazr/restfulclient/resource.py", line 511, in __init__
    self._wadl = self._browser.get_wadl_application(self._root_uri)
                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/lazr/restfulclient/_browser.py", line 502, in get_wadl_application
    response, content = self._request(url, media_type=wadl_type)
                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/lazr/restfulclient/_browser.py", line 441, in _request
    response, content = self._request_and_retry(
                        ^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/lazr/restfulclient/_browser.py", line 400, in _request_and_retry
    response, content = self._connection.request(
                        ^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/httplib2/__init__.py", line 1701, in request
    (response, content) = self._request(
                          ^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/launchpadlib/launchpad.py", line 144, in _request
    response, content = super(LaunchpadOAuthAwareHttp, self)._request(
                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/lazr/restfulclient/_browser.py", line 204, in _request
    return super(RestfulHttp, self)._request(
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/httplib2/__init__.py", line 1421, in _request
    (response, content) = self._conn_request(conn, request_uri, method, body, headers)
                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/httplib2/__init__.py", line 1350, in _conn_request
    raise ServerNotFoundError("Unable to find the server at %s" % conn.host)
httplib2.error.ServerNotFoundError: Unable to find the server at api.launchpad

I've no idea what the problem is here and any help would be apreciated. For context, I need to install an older version of PHP to keep some old intranet pages alive. Rewriting the pages is unfortunately not an option. The server is behind a proxy, but the proxy is set in the system and apt is working fine.

Thanks in advance for the help.

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