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Getting help
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The Basics
- Nextcloud Server version (e.g., 29.x.x):
NextCloudPi 31.0.14
- Operating system and version (e.g., Ubuntu 24.04):
Armbian 26.8.3 bookworm
- Web server and version (e.g, Apache 2.4.25):
- Apache/2.4.68 (Debian)
- Reverse proxy and version _(e.g. nginx 1.27.2)
?
- PHP version (e.g, 8.3):
- PHP 8.3.17 (cli)
- Is this the first time you’ve seen this error? (Yes / No):
probably not
- When did this problem seem to first start?
Sept 2024 (It is the first error in the log)
- Installation method (e.g. AlO, NCP, Bare Metal/Archive, etc.)
NCP
- Are you using CloudfIare, mod_security, or similar? (Yes / No)
Don't think so
Summary of the issue you are facing:
I am getting this recurring error.
Exception HMAC does not match.
[no app in context] Error: Could not decrypt or decode encrypted session data
GET /login
from 80.76.42.17 by – at Sep 25, 2026, 11:16:19 AM
I have searched the web and forum, but I find mostly old closed topics that don’t have solutions, except “pull request might get accepted some day.”
Question 1: Should I just ignore this error?
Question 2: As a lay person, how can I make sense of errors like these? What is the process to troubleshoot them and decide if they are important?
Context: I had a power outage recently, and the raspberry pi wouldn’t boot up properly until I disconnected the USB drive (but there is no entry in fstab I can adjust). I am trying to bring it up and do any maintenance checks I can think of to see if everything is running smoothly, including checking the log for errors.
Web Browser
If the problem is related to the Web interface, open your browser inspector Console and Network tabs while refreshing (reloading) and reproducing the problem. Provide any relevant output/errors here that appear.
I am not sure what causes the problem
Web server / Reverse Proxy
The output of your Apache/nginx/system log in /var/log/____:
[Fri Sep 25 02:15:47.469363 2026] [ssl:error] [pid 951:tid 951] AH02218: ssl_stapling_init_cert: no OCSP URI in certificate and no SSLStaplingForceURL set [subject: CN=nc.domain.tld / issuer: CN=YE2,O=Let's Encrypt,C=US / serial: 0674EC59F014D04A2DCB65E4927CAFC390BE / notbefore: Sep 14 09:58:19 2026 GMT / notafter: Dec 13 09:58:18 2026 GMT]
[Fri Sep 25 02:15:47.471607 2026] [ssl:error] [pid 951:tid 951] AH02604: Unable to configure certificate nc.domain.tld:443:0 for stapling
[Fri Sep 25 02:15:47.622313 2026] [ssl:error] [pid 1204:tid 1204] AH02218: ssl_stapling_init_cert: no OCSP URI in certificate and no SSLStaplingForceURL set [subject: CN=nc.domain.tld / issuer: CN=YE2,O=Let's Encrypt,C=US / serial: 0674EC59F014D04A2DCB65E4927CAFC390BE / notbefore: Sep 14 09:58:19 2026 GMT / notafter: Dec 13 09:58:18 2026 GMT]
[Fri Sep 25 02:15:47.622385 2026] [ssl:error] [pid 1204:tid 1204] AH02604: Unable to configure certificate nc.domain.tld:443:0 for stapling
[Fri Sep 25 06:58:32.909399 2026] [core:error] [pid 1208:tid 1255] [remote 185.177.72.64:11151] AH10244: invalid URI path (/../.env)
[Fri Sep 25 06:58:32.992835 2026] [core:error] [pid 1208:tid 1218] [remote 185.177.72.64:11151] AH10244: invalid URI path (/../../.env)
[Fri Sep 25 06:58:41.169511 2026] [access_compat:error] [pid 1208:tid 1240] [remote 185.177.72.64:11151] AH01797: client denied by server configuration: /var/www/nextcloud/config/.env
[Fri Sep 25 06:59:16.473228 2026] [access_compat:error] [pid 1208:tid 1260] [remote 185.177.72.64:11151] AH01797: client denied by server configuration: /var/www/nextcloud/config/.env.php
[Fri Sep 25 07:42:39.945482 2026] [access_compat:error] [pid 1210:tid 1308] [client 213.35.109.13:28404] AH01797: client denied by server configuration: /var/www/nextcloud/config/secrets.yml
[Fri Sep 25 11:00:22.635613 2026] [core:error] [pid 1210:tid 1238] [remote 213.209.159.175:45807] AH10244: invalid URI path (/../.env)
[Fri Sep 25 11:00:22.727679 2026] [core:error] [pid 1210:tid 1229] [remote 213.209.159.175:45807] AH10244: invalid URI path (/../../.env)
[Fri Sep 25 11:00:31.936437 2026] [access_compat:error] [pid 1210:tid 1247] [remote 213.209.159.175:45807] AH01797: client denied by server configuration: /var/www/nextcloud/config/.env
[Fri Sep 25 11:01:08.792476 2026] [access_compat:error] [pid 1210:tid 1222] [remote 213.209.159.175:45807] AH01797: client denied by server configuration: /var/www/nextcloud/config/.env.php
Configuration
Nextcloud
The output of occ config:list system or similar is best, but, if not possible, the contents of your config.php file from /path/to/nextcloud is fine (make sure to remove any identifiable information!):
# sudo -u www-data php /var/www/nextcloud/occ config:list system
"version": "31.0.14.1",
"overwrite.cli.url": "https:\/\/nextcloudpi\/",
"dbname": "***REMOVED SENSITIVE VALUE***",
"dbhost": "***REMOVED SENSITIVE VALUE***",
"dbport": "",
"dbtableprefix": "oc_",
"mysql.utf8mb4": true,
"dbuser": "***REMOVED SENSITIVE VALUE***",
"dbpassword": "***REMOVED SENSITIVE VALUE***",
"installed": true,
"instanceid": "***REMOVED SENSITIVE VALUE***",
"memcache.local": "\\OC\\Memcache\\Redis",
"memcache.locking": "\\OC\\Memcache\\Redis",
"redis": {
"host": "***REMOVED SENSITIVE VALUE***",
"port": 0,
"timeout": 0,
"password": "***REMOVED SENSITIVE VALUE***"
},
"tempdirectory": "\/media\/wb-2tb\/3ncdata\/data\/tmp",
"mail_smtpmode": "sendmail",
"mail_smtpauthtype": "LOGIN",
"mail_from_address": "***REMOVED SENSITIVE VALUE***",
"mail_domain": "***REMOVED SENSITIVE VALUE***",
"preview_max_x": "2048",
"preview_max_y": "2048",
"jpeg_quality": "60",
"overwriteprotocol": "https",
"maintenance": false,
"logfile": "\/media\/wb-2tb\/3ncdata\/data\/nextcloud.log",
"trusted_proxies": "***REMOVED SENSITIVE VALUE***",
"loglevel": "2",
"log_type": "file",
"maintenance_window_start": 1,
"htaccess.RewriteBase": "\/",
"default_phone_region": "US",
"default_timezone": "America\/NewYork",
"lost_password_link": "disabled",
"data-fingerprint": "30f70887228a9242d70f38aa702b5a59",
"theme": "",
"serverid": 543
}
}
Apps
The output of occ app:list (if possible).
Enabled:
- activity: 4.0.0
- bookmarks: 15.2.1
- bruteforcesettings: 4.0.0
- calendar: 5.5.14
- circles: 31.0.0
- cloud_federation_api: 1.14.0
- comments: 1.21.0
- contacts: 7.3.13
- contactsinteraction: 1.12.1
- dashboard: 7.11.0
- dav: 1.33.0
- deck: 1.15.6
- federatedfilesharing: 1.21.0
- federation: 1.21.0
- files: 2.3.1
- files_downloadlimit: 4.0.0
- files_fulltextsearch: 31.0.0
- files_fulltextsearch_tesseract: 27.0.1
- files_pdfviewer: 4.0.0
- files_reminders: 1.4.0
- files_sharing: 1.23.2
- files_trashbin: 1.21.0
- files_versions: 1.24.0
- firstrunwizard: 4.0.0
- fulltextsearch: 31.0.1
- fulltextsearch_elasticsearch: 31.0.2
- logreader: 4.0.0
- lookup_server_connector: 1.19.0
- nextcloud_announcements: 3.0.0
- notes: 4.13.0
- notifications: 4.0.0
- notify_push: 1.3.0
- oauth2: 1.19.1
- password_policy: 3.0.0
- photos: 4.0.0
- previewgenerator: 5.13.0
- privacy: 3.0.0
- profile: 1.0.0
- provisioning_api: 1.21.0
- recommendations: 4.0.0
- related_resources: 2.0.0
- serverinfo: 3.0.0
- settings: 1.14.0
- sharebymail: 1.21.0
- support: 3.0.0
- survey_client: 3.0.0
- systemtags: 1.21.1
- tasks: 0.17.1
- text: 5.0.2
- theming: 2.6.1
- twofactor_backupcodes: 1.20.0
- twofactor_totp: 13.0.0-dev.0
- user_status: 1.11.0
- viewer: 4.0.0
- weather_status: 1.11.0
- webhook_listeners: 1.2.0
- workflowengine: 2.13.0
Disabled:
- admin_audit: 1.21.0
- app_api: 5.0.2 (installed 4.0.6)
- encryption: 2.19.0
- files_external: 1.23.1
- nextcloudpi: 0.0.2 (installed 0.0.2)
- suspicious_login: 9.0.1
- twofactor_nextcloud_notification: 5.0.0
- updatenotification: 1.21.0 (installed 1.18.0)
- user_ldap: 1.22.0