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My domain is: https://www.kastery.com/
I ran this command: sudo certbot renew
It produced this output: No renewals were attempted.
My web server is (include version): nodejs, expressjs , nginx reverse proxy
The operating system my web server runs on is (include version): ubuntu 17.04
My hosting provider, if applicable, is: digitalocean
I can login to a root shell on my machine (yes or no, or I don’t know): yes
I’m using a control panel to manage my site (no, or provide the name and version of the control panel): no
I move base folder “/etc/letsencrypt” to path “/home/userxxxx/letsencrypt” . I don’t know about failed.
my log
2017-08-28 21:23:43,408:DEBUG:certbot.main:certbot version: 0.14.2
2017-08-28 21:23:43,408:DEBUG:certbot.main:Arguments: []
2017-08-28 21:23:43,408:DEBUG:certbot.main:Discovered plugins: PluginsRegistry(PluginEntryPoint#manual,PluginEntryPoint#null,PluginEntryPoint#standalone,PluginEntryPoint#webroot)
2017-08-28 21:23:43,422:DEBUG:certbot.plugins.selection:Requested authenticator <certbot.cli._Default object at 0x7fc3d9b18190> and installer <certbot.cli._Default object at 0x7fc3d9b18190>
2017-08-28 21:23:43,422:DEBUG:certbot.cli:Default Detector is Namespace(account=<certbot.cli._Default object at 0x7fc3d9b18650>, agree_dev_preview=None, allow_subset_of_names=<certbot.cli._Default object at 0x7fc3d9b18410>, apache=<certbot.cli._Default object at 0x7fc3d9b08b90>, authenticator=<certbot.cli._Default object at 0x7fc3d9b18190>, break_my_certs=<certbot.cli._Default object at 0x7fc3d9a9e290>, cert_path=<certbot.cli._Default object at 0x7fc3d9a9e210>, certname=<certbot.cli._Default object at 0x7fc3d9b08510>, chain_path=<certbot.cli._Default object at 0x7fc3d9b18bd0>, checkpoints=<certbot.cli._Default object at 0x7fc3d9a9ec10>, config_dir=<certbot.cli._Default object at 0x7fc3d9b189d0>, config_file=None, configurator=<certbot.cli._Default object at 0x7fc3d9b18190>, csr=<certbot.cli._Default object at 0x7fc3d9aa2750>, debug=<certbot.cli._Default object at 0x7fc3d9b18d50>, debug_challenges=<certbot.cli._Default object at 0x7fc3d9b18e50>, dialog=None, domains=<certbot.cli._Default object at 0x7fc3d9b08690>, dry_run=<certbot.cli._Default object at 0x7fc3d9b08350>, duplicate=<certbot.cli._Default object at 0x7fc3d9b18750>, eff_email=<certbot.cli._Default object at 0x7fc3d9b08d10>, email=<certbot.cli._Default object at 0x7fc3d9b08c10>, expand=<certbot.cli._Default object at 0x7fc3d9b18050>, force_interactive=<certbot.cli._Default object at 0x7fc3d9b08810>, fullchain_path=<certbot.cli._Default object at 0x7fc3d9b18dd0>, func=<function renew at 0x7fc3d3a722a8>, hsts=<certbot.cli._Default object at 0x7fc3d9a9e790>, http01_port=<certbot.cli._Default object at 0x7fc3d9a9e190>, ifaces=<certbot.cli._Default object at 0x7fc3d9a9e610>, init=<certbot.cli._Default object at 0x7fc3d9a9ea10>, installer=<certbot.cli._Default object at 0x7fc3d9b18190>, key_path=<certbot.cli._Default object at 0x7fc3d9a9e050>, logs_dir=<certbot.cli._Default object at 0x7fc3d9b185d0>, manual=<certbot.cli._Default object at 0x7fc3d9b088d0>, manual_auth_hook=<certbot.cli._Default object at 0x7fc3d9aefb10>, manual_cleanup_hook=<certbot.cli._Default object at 0x7fc3d9af9950>, manual_public_ip_logging_ok=<certbot.cli._Default object at 0x7fc3d9af9bd0>, must_staple=<certbot.cli._Default object at 0x7fc3d9a9e490>, nginx=<certbot.cli._Default object at 0x7fc3d9b08290>, no_bootstrap=<certbot.cli._Default object at 0x7fc3d9b18a50>, no_self_upgrade=<certbot.cli._Default object at 0x7fc3d9b18950>, no_verify_ssl=<certbot.cli._Default object at 0x7fc3d9b18f50>, noninteractive_mode=<certbot.cli._Default object at 0x7fc3d9b08990>, num=<certbot.cli._Default object at 0x7fc3d9aa2550>, os_packages_only=<certbot.cli._Default object at 0x7fc3d9b18850>, post_hook=<certbot.cli._Default object at 0x7fc3d9aa20d0>, pre_hook=<certbot.cli._Default object at 0x7fc3d9a9ef90>, pref_challs=<certbot.cli._Default object at 0x7fc3d9a9ee90>, prepare=<certbot.cli._Default object at 0x7fc3d9a9e810>, quiet=<certbot.cli._Default object at 0x7fc3d9b18b50>, reason=<certbot.cli._Default object at 0x7fc3d9a9ee10>, redirect=<certbot.cli._Default object at 0x7fc3d9a9e590>, register_unsafely_without_email=<certbot.cli._Default object at 0x7fc3d9b081d0>, reinstall=<certbot.cli._Default object at 0x7fc3d9b08f10>, renew_by_default=<certbot.cli._Default object at 0x7fc3d9b18210>, renew_hook=<certbot.cli._Default object at 0x7fc3d9aa21d0>, renew_with_new_domains=<certbot.cli._Default object at 0x7fc3d9b18310>, rsa_key_size=<certbot.cli._Default object at 0x7fc3d9a9e390>, server=<certbot.cli._Default object at 0x7fc3d9b18390>, staging=<certbot.cli._Default object at 0x7fc3d9b18c50>, standalone=<certbot.cli._Default object at 0x7fc3d9b085d0>, standalone_supported_challenges=<certbot.cli._Default object at 0x7fc3d9af9dd0>, staple=<certbot.cli._Default object at 0x7fc3d9a9eb90>, strict_permissions=<certbot.cli._Default object at 0x7fc3d9a9ed90>, text_mode=<certbot.cli._Default object at 0x7fc3d9aefc50>, tls_sni_01_port=<certbot.cli._Default object at 0x7fc3d9a9e090>, tos=<certbot.cli._Default object at 0x7fc3d9b18550>, uir=<certbot.cli._Default object at 0x7fc3d9a9e990>, update_registration=<certbot.cli._Default object at 0x7fc3d9b08050>, user_agent=<certbot.cli._Default object at 0x7fc3d9aa2650>, validate_hooks=<certbot.cli._Default object at 0x7fc3d9aa22d0>, verb=‘renew’, verbose_count=<certbot.cli._Default object at 0x7fc3d9aefcd0>, webroot=<certbot.cli._Default object at 0x7fc3d9aefb90>, webroot_map=<certbot.cli._Default object at 0x7fc3d9b01390>, webroot_path=<certbot.cli._Default object at 0x7fc3d9aefa90>, work_dir=<certbot.cli._Default object at 0x7fc3d9b187d0>)
2017-08-28 21:23:43,440:DEBUG:certbot.log:Root logging level set at 20
2017-08-28 21:23:43,441:INFO:certbot.log:Saving debug log to /var/log/letsencrypt/letsencrypt.log
2017-08-28 21:23:43,442:DEBUG:certbot.renewal:no renewal failures
Can you help me ?