Browsers not picking up new SSL certificate

vestasit.com" --deploy-hook "/usr/local/lsws/bin/lswsctrl reload" --dry-run
Saving debug log to /var/log/letsencrypt/letsencrypt.log
Plugins selected: Authenticator webroot, Installer None
Cert is due for renewal, auto-renewing...
Renewing an existing certificate
Performing the following challenges:
http-01 challenge for vestasit.com
http-01 challenge for www.vestasit.com
Using the webroot path /var/www/html for all unmatched domains.
Waiting for verification...
Cleaning up challenges

An unexpected error occurred:

Traceback (most recent call last):
File "/usr/lib/python3/dist-packages/urllib3/connectionpool.py", line 387, in _make_request
six.raise_from(e, None)
File "", line 3, in raise_from
File "/usr/lib/python3/dist-packages/urllib3/connectionpool.py", line 383, in _make_request
httplib_response = conn.getresponse()
File "/usr/lib/python3.6/http/client.py", line 1373, in getresponse
response.begin()
File "/usr/lib/python3.6/http/client.py", line 311, in begin
version, status, reason = self._read_status()
File "/usr/lib/python3.6/http/client.py", line 272, in _read_status
line = str(self.fp.readline(_MAXLINE + 1), "iso-8859-1")
File "/usr/lib/python3.6/socket.py", line 586, in readinto
return self._sock.recv_into(b)
File "/usr/lib/python3.6/ssl.py", line 1012, in recv_into
return self.read(nbytes, buffer)
File "/usr/lib/python3.6/ssl.py", line 874, in read
return self._sslobj.read(len, buffer)
File "/usr/lib/python3.6/ssl.py", line 631, in read
v = self._sslobj.read(len, buffer)
socket.timeout: The read operation timed out

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "/usr/lib/python3/dist-packages/requests/adapters.py", line 440, in send
timeout=timeout
File "/usr/lib/python3/dist-packages/urllib3/connectionpool.py", line 639, in urlopen
_stacktrace=sys.exc_info()[2])
File "/usr/lib/python3/dist-packages/urllib3/util/retry.py", line 367, in increment
raise six.reraise(type(error), error, _stacktrace)
File "/usr/lib/python3/dist-packages/six.py", line 693, in reraise
raise value
File "/usr/lib/python3/dist-packages/urllib3/connectionpool.py", line 601, in urlopen
chunked=chunked)
File "/usr/lib/python3/dist-packages/urllib3/connectionpool.py", line 389, in _make_request
self._raise_timeout(err=e, url=url, timeout_value=read_timeout)
File "/usr/lib/python3/dist-packages/urllib3/connectionpool.py", line 309, in _raise_timeout
raise ReadTimeoutError(self, url, "Read timed out. (read timeout=%s)" % timeout_value)
urllib3.exceptions.ReadTimeoutError: HTTPSConnectionPool(host='acme-staging-v02.api.letsencrypt.org', port=443): Re
ad timed out. (read timeout=45)
During handling of the above exception, another exception occurred:
requests.exceptions.ReadTimeout: HTTPSConnectionPool(host='acme-staging-v02.api.letsencrypt.org', port=443): Read t
imed out. (read timeout=45)
Please see the logfiles in /var/log/letsencrypt for more details.

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