Ubuntu 18.04 LTS: Aktualisierung LetsEncrypt- Zertifikate nicht möglich

<VirtualHost *:80>
    ServerAdmin info@schali-graupa.de
    ServerName www.schali-graupa.de
    ServerAlias schali-graupa.de
    DocumentRoot /var/www/schali.homepage
    ErrorLog ${APACHE_LOG_DIR}/error.log
    CustomLog ${APACHE_LOG_DIR}/access.log combined
    RewriteEngine on
    RewriteCond %{SERVER_NAME} =schalmeienkapelle-graupa.de [OR]
    RewriteCond %{SERVER_NAME} =www.schalmeienkapelle-graupa.de [OR]
    RewriteCond %{SERVER_NAME} =schali-graupa.de [OR]
    RewriteCond %{SERVER_NAME} =www.schali-graupa.de
</VirtualHost>
 
<Directory /var/www/schali.homepage/>
    AllowOverride All
</Directory>

sudo certbot --apache -d www.schali-graupa.de

2020-04-22 12:53:52,027:DEBUG:certbot.main:certbot version: 0.31.0
2020-04-22 12:53:52,031:DEBUG:certbot.main:Arguments: ['--apache', '-d', 'www.schali-graupa.de']  
2020-04-22 12:53:52,034:DEBUG:certbot.main:Discovered plugins: PluginsRegistry(PluginEntryPoint#apache,PluginEntryPoint#manual,PluginEntryPoint#null,PluginEntryPoint#standalone,PluginEntryPoint#webroot)
2020-04-22 12:53:52,066:DEBUG:certbot.log:Root logging level set at 20
2020-04-22 12:53:52,069:INFO:certbot.log:Saving debug log to /var/log/letsencrypt/letsencrypt.log
2020-04-22 12:53:52,071:DEBUG:certbot.plugins.selection:Requested authenticator apache and installer apache
2020-04-22 12:53:52,344:DEBUG:certbot_apache.configurator:Apache version is 2.4.29
2020-04-22 12:53:53,350:DEBUG:certbot.plugins.selection:Single candidate plugin: * apache
Description: Apache Web Server plugin
Interfaces: IAuthenticator, IInstaller, IPlugin
Entry point: apache = certbot_apache.entrypoint:ENTRYPOINT
Initialized: <certbot_apache.override_debian.DebianConfigurator object at 0x7fc11f9789b0>
Prep: True
2020-04-22 12:53:53,356:DEBUG:certbot.plugins.selection:Selected authenticator <certbot_apache.override_debian.DebianConfigurator object at 0x7fc11f9789b0> and installer <certbot_apache.override_debian.DebianConfigurator object at 0x7fc11f9789b0>
2020-04-22 12:53:53,357:INFO:certbot.plugins.selection:Plugins selected: Authenticator apache, Installer apache
2020-04-22 12:53:53,372:DEBUG:certbot.main:Picked account: <Account(RegistrationResource(body=Registration(key=None, contact=(), agreement=None, status=None, terms_of_service_agreed=None, only_return_existing=None, external_account_binding=None), uri='https://acme-v02.api.letsencrypt.org/acme/acct/84119607', new_authzr_uri=None, terms_of_service=None), 0dc81b61f19d939cfc07fc0ed254ed90, Meta(creation_dt=datetime.datetime(2020, 4, 22, 7, 39, tzinfo=<UTC>), creation_host='Pirat-Web-02'))>  
2020-04-22 12:53:53,381:DEBUG:acme.client:Sending GET request to https://acme-v02.api.letsencrypt.org/directory.
2020-04-22 12:53:53,391:DEBUG:urllib3.connectionpool:Starting new HTTPS connection (1): acme-v02.api.letsencrypt.org
2020-04-22 12:53:54,006:DEBUG:urllib3.connectionpool:https://acme-v02.api.letsencrypt.org:443 "GET /directory HTTP/1.1" 200 658 
2020-04-22 12:53:54,008:DEBUG:acme.client:Received response:
HTTP 200
Server: nginx
Date: Wed, 22 Apr 2020 10:53:53 GMT
Content-Type: application/json
Content-Length: 658
Connection: keep-alive
Cache-Control: public, max-age=0, no-cache
X-Frame-Options: DENY
Strict-Transport-Security: max-age=604800

{
  "YFbX2l2oHqI": "https://community.letsencrypt.org/t/adding-random-entries-to-the-directory/33417",  
  "keyChange": "https://acme-v02.api.letsencrypt.org/acme/key-change",  
  "meta": {  
    "caaIdentities": [  
      "letsencrypt.org"  
    ],
    "termsOfService": "https://letsencrypt.org/documents/LE-SA-v1.2-November-15-2017.pdf",  
    "website": "https://letsencrypt.org"  
  },
  "newAccount": "https://acme-v02.api.letsencrypt.org/acme/new-acct",  
  "newNonce": "https://acme-v02.api.letsencrypt.org/acme/new-nonce",  
  "newOrder": "https://acme-v02.api.letsencrypt.org/acme/new-order",  
  "revokeCert": "https://acme-v02.api.letsencrypt.org/acme/revoke-cert"  
}
2020-04-22 12:53:54,040:INFO:certbot.renewal:Cert not yet due for renewal
2020-04-22 12:53:58,490:INFO:certbot.main:Keeping the existing certificate
2020-04-22 12:53:58,491:DEBUG:certbot.reporter:Reporting to user: Congratulations! Your certificate and chain have been saved at:
/etc/letsencrypt/live/www.schali-graupa.de/fullchain.pem
Your key file has been saved at:
/etc/letsencrypt/live/www.schali-graupa.de/privkey.pem
Your cert will expire on 2020-07-21. To obtain a new or tweaked version of this certificate in the future, simply run certbot again with the "certonly" option. To non-interactively renew *all* of your certificates, run "certbot renew"  
2020-04-22 12:53:58,495:DEBUG:certbot.reverter:Creating backup of /etc/apache2/sites-available/schalihomepage-le-ssl.conf
2020-04-22 12:53:58,500:DEBUG:certbot.error_handler:Encountered exception:
Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/certbot/client.py", line 516, in deploy_certificate  
    fullchain_path=fullchain_path)
  File "/usr/lib/python3/dist-packages/certbot_apache/configurator.py", line 334, in deploy_cert  
    vhosts = self.choose_vhosts(domain)
  File "/usr/lib/python3/dist-packages/certbot_apache/configurator.py", line 358, in choose_vhosts  
    return [self.choose_vhost(domain, create_if_no_ssl)]
  File "/usr/lib/python3/dist-packages/certbot_apache/configurator.py", line 540, in choose_vhost  
    vhost = self.make_vhost_ssl(vhost)
  File "/usr/lib/python3/dist-packages/certbot_apache/configurator.py", line 1116, in make_vhost_ssl  
    self._copy_create_ssl_vhost_skeleton(nonssl_vhost, ssl_fp)
  File "/usr/lib/python3/dist-packages/certbot_apache/configurator.py", line 1260, in _copy_create_ssl_vhost_skeleton  
    ssl_vh_contents, sift = self._sift_rewrite_rules(orig_contents)
  File "/usr/lib/python3/dist-packages/certbot_apache/configurator.py", line 1332, in _sift_rewrite_rules  
    line = next(contents)
StopIteration

2020-04-22 12:53:58,500:DEBUG:certbot.error_handler:Calling registered functions
2020-04-22 12:53:58,506:DEBUG:certbot.reporter:Reporting to user: Unable to install the certificate
2020-04-22 12:53:58,507:DEBUG:certbot.log:Exiting abnormally:
Traceback (most recent call last):
  File "/usr/bin/certbot", line 11, in <module>  
    load_entry_point('certbot==0.31.0', 'console_scripts', 'certbot')()  
  File "/usr/lib/python3/dist-packages/certbot/main.py", line 1365, in main  
    return config.func(config, plugins)
  File "/usr/lib/python3/dist-packages/certbot/main.py", line 1126, in run  
    _install_cert(config, le_client, domains, new_lineage)
  File "/usr/lib/python3/dist-packages/certbot/main.py", line 760, in _install_cert  
    path_provider.cert_path, path_provider.chain_path, path_provider.fullchain_path)
  File "/usr/lib/python3/dist-packages/certbot/client.py", line 516, in deploy_certificate  
    fullchain_path=fullchain_path)
  File "/usr/lib/python3/dist-packages/certbot_apache/configurator.py", line 334, in deploy_cert  
    vhosts = self.choose_vhosts(domain)
  File "/usr/lib/python3/dist-packages/certbot_apache/configurator.py", line 358, in choose_vhosts  
    return [self.choose_vhost(domain, create_if_no_ssl)]
  File "/usr/lib/python3/dist-packages/certbot_apache/configurator.py", line 540, in choose_vhost  
    vhost = self.make_vhost_ssl(vhost)
  File "/usr/lib/python3/dist-packages/certbot_apache/configurator.py", line 1116, in make_vhost_ssl  
    self._copy_create_ssl_vhost_skeleton(nonssl_vhost, ssl_fp)
  File "/usr/lib/python3/dist-packages/certbot_apache/configurator.py", line 1260, in _copy_create_ssl_vhost_skeleton  
    ssl_vh_contents, sift = self._sift_rewrite_rules(orig_contents)
  File "/usr/lib/python3/dist-packages/certbot_apache/configurator.py", line 1332, in _sift_rewrite_rules  
    line = next(contents)
StopIteration
2020-04-22 12:53:58,509:ERROR:certbot.log:An unexpected error occurred: