Nextcloud stuck in maintenance mode after update

root /var/www/nextcloud # sudo -u www-data php occ app:list
Enabled:
  - activity: 2.20.0
  - bruteforcesettings: 2.8.0
  - circles: 28.0.0-dev
  - cloud_federation_api: 1.11.0
  - comments: 1.18.0
  - dav: 1.29.1
  - federatedfilesharing: 1.18.0
  - files: 2.0.0
  - files_pdfviewer: 2.9.0
  - files_reminders: 1.1.0
  - files_sharing: 1.20.0
  - files_trashbin: 1.18.0
  - files_versions: 1.21.0
  - logreader: 2.13.0
  - lookup_server_connector: 1.16.0
  - nextcloud_announcements: 1.17.0
  - notifications: 2.16.0
  - oauth2: 1.16.3
  - password_policy: 1.18.0
  - photos: 2.4.0
  - privacy: 1.12.0
  - provisioning_api: 1.18.0
  - recommendations: 2.0.0
  - related_resources: 1.3.0
  - serverinfo: 1.18.0
  - settings: 1.10.1
  - sharebymail: 1.18.0
  - theming: 2.3.0
  - twofactor_backupcodes: 1.17.0
  - twofactor_totp: 10.0.0-beta.2
  - updatenotification: 1.18.0
  - viewer: 2.2.0
  - workflowengine: 2.10.0
Disabled:
  - admin_audit: 1.18.0
  - contactsinteraction: 1.9.0 (installed 1.1.0)
  - dashboard: 7.8.0 (installed 7.0.0)
  - encryption: 2.16.0
  - federation: 1.18.0 (installed 1.4.0)
  - files_external: 1.20.0
  - firstrunwizard: 2.17.0 (installed 2.9.0)
  - support: 1.11.0 (installed 1.0.0)
  - survey_client: 1.16.0 (installed 1.2.0)
  - suspicious_login: 6.0.0
  - systemtags: 1.18.0 (installed 1.4.0)
  - text: 3.9.1 (installed 1.1.1)
  - user_ldap: 1.19.0
  - user_status: 1.8.1 (installed 1.0.1)
  - weather_status: 1.8.0 (installed 1.0.0)