Error message - renewing Lets Encrypt via Terminal

Ah, here we go:

2018-05-08 08:50:13,152:DEBUG:certbot.storage:Should renew, less than 30 days before certificate expiry 2018-05-22 09:23:53 UTC.
2018-05-08 08:50:13,152:INFO:certbot.renewal:Cert is due for renewal, auto-renewing…
2018-05-08 08:50:13,152:DEBUG:certbot.plugins.selection:Requested authenticator webroot and installer None
2018-05-08 08:50:13,153:DEBUG:certbot.plugins.selection:Single candidate plugin: * webroot
Description: Place files in webroot directory
Interfaces: IAuthenticator, IPlugin
Entry point: webroot = certbot.plugins.webroot:Authenticator
Initialized: <certbot.plugins.webroot.Authenticator object at 0x7f732058e050>
Prep: True
2018-05-08 08:50:13,153:DEBUG:certbot.plugins.selection:Selected authenticator <certbot.plugins.webroot.Authenticator object at 0x7f732058e050> and installer None
2018-05-08 08:50:13,153:INFO:certbot.plugins.selection:Plugins selected: Authenticator webroot, Installer None
_2018-05-08 08:50:13,156:DEBUG:certbot.main:Picked account: <Account(RegistrationResource(body=Registration(status=None, contact=(u’mailto:aaron+twintec@impression.co.uk’,), agreement=u’https://letsencrypt.org/documents/LE-SA-v1.1.1-August-1-2016.pdf’, key=JWKRSA(key=<ComparableRSAKey(<cryptography.hazmat.backends.openssl.rsa.RSAPublicKey object at 0x7f732537c990>)>)), uri=u’https://acme-v01.api.letsencrypt.org/acme/reg/15503936’, new_authzr_uri=u’https://acme-v01.api.letsencrypt.org/acme/new-authz’, terms_of_service=u’https://letsencrypt.org/documents/LE-SA-v1.1.1-August-1-2016.pdf’), d8c51f04178196414fad759ff6ef2140, Meta(creation_host=u’ip-172-31-19-55.eu-west-1.compute.internal’, creation_dt=datetime.datetime(2017, 5, 24, 23, 19, 43, tzinfo=)))>
2018-05-08 08:50:13,156:DEBUG:acme.client:Sending GET request to https://acme-v01.api.letsencrypt.org/directory.
2018-05-08 08:50:13,173:DEBUG:requests.packages.urllib3.connectionpool:Starting new HTTPS connection (1): acme-v01.api.letsencrypt.org
2018-05-08 08:50:13,479:DEBUG:requests.packages.urllib3.connectionpool:https://acme-v01.api.letsencrypt.org:443 “GET /directory HTTP/1.1” 200 658
2018-05-08 08:50:13,480:DEBUG:acme.client:Received response:
HTTP 200
Server: nginx
Content-Type: application/json
Content-Length: 658
Replay-Nonce: Q2T4bkEG8EpIxNhkyQJD0p6mEXwv0awH4cUa4jDs3_Q
X-Frame-Options: DENY
Strict-Transport-Security: max-age=604800
Expires: Tue, 08 May 2018 08:50:13 GMT
Cache-Control: max-age=0, no-cache, no-store
Pragma: no-cache
Date: Tue, 08 May 2018 08:50:13 GMT
Connection: keep-alive

{
_ “aP-qAGWzlas”: “Adding random entries to the directory”,_
_ “key-change”: “https://acme-v01.api.letsencrypt.org/acme/key-change”,_
_ “meta”: {_
_ “caaIdentities”: [_
_ “letsencrypt.org”_
_ ],_
_ “terms-of-service”: “https://letsencrypt.org/documents/LE-SA-v1.2-November-15-2017.pdf”,_
_ “website”: “https://letsencrypt.org”_
_ },_
_ “new-authz”: “https://acme-v01.api.letsencrypt.org/acme/new-authz”,_
_ “new-cert”: “https://acme-v01.api.letsencrypt.org/acme/new-cert”,_
_ “new-reg”: “https://acme-v01.api.letsencrypt.org/acme/new-reg”,_
_ “revoke-cert”: “https://acme-v01.api.letsencrypt.org/acme/revoke-cert”_
}
2018-05-08 08:50:13,481:INFO:certbot.main:Renewing an existing certificate
2018-05-08 08:50:13,482:DEBUG:acme.client:Requesting fresh nonce
2018-05-08 08:50:13,482:DEBUG:acme.client:Sending HEAD request to https://acme-v01.api.letsencrypt.org/acme/new-authz.
2018-05-08 08:50:13,674:DEBUG:requests.packages.urllib3.connectionpool:https://acme-v01.api.letsencrypt.org:443 “HEAD /acme/new-authz HTTP/1.1” 405 0
2018-05-08 08:50:13,674:DEBUG:acme.client:Received response:
HTTP 405
Server: nginx
Content-Type: application/problem+json
Content-Length: 91
Allow: POST
Replay-Nonce: 4UYyNbKrlj4LeQxG2sN-MeCP0SqWwYU2Afu6EqnUCzI
Expires: Tue, 08 May 2018 08:50:13 GMT
Cache-Control: max-age=0, no-cache, no-store
Pragma: no-cache
Date: Tue, 08 May 2018 08:50:13 GMT
Connection: keep-alive