NextcloudPi 1.17.1: Plenty of errors in log

Row after row of error messages filling up the log, and I don’t have a clue on how to fix:

[no app in context] Error: Symfony\Component\Routing\Exception\RouteNotFoundException: Unable to generate a URL for the named route "ocs.provisioning_api.AppsController.disable" as such route does not exist. at <<closure>>
  1. /var/www/nextcloud/lib/private/Route/Router.php line 337
    Symfony\Component\Routing\Generator\UrlGenerator->generate(“ocs.provisionin … e”, {app: “nextcloud_announcements”}, 1)
  2. /var/www/nextcloud/lib/private/Route/CachingRouter.php line 60
    OC\Route\Router->generate(“ocs.provisionin … e”, {app: “nextcloud_announcements”}, false)
  3. /var/www/nextcloud/lib/private/URLGenerator.php line 95
    OC\Route\CachingRouter->generate(“ocs.provisionin … e”, {app: “nextcloud_announcements”}, false)
  4. /var/www/nextcloud/apps/nextcloud_announcements/lib/Notification/Notifier.php line 89
    OC\URLGenerator->linkToOCSRouteAbsolute(“provisioning_api.AppsController.disable”, {app: “nextcloud_announcements”})
  5. /var/www/nextcloud/lib/private/Notification/Manager.php line 226
    OCA\NextcloudAnnouncements\Notification\Notifier->prepare(OC\Notification\Notification {}, “en”)
  6. /var/www/nextcloud/apps/notifications/lib/Controller/EndpointController.php line 92
    OC\Notification\Manager->prepare(OC\Notification\Notification {}, “en”)
  7. /var/www/nextcloud/lib/private/AppFramework/Http/Dispatcher.php line 166
    OCA\Notifications\Controller\EndpointController->listNotifications(“v2”)
  8. /var/www/nextcloud/lib/private/AppFramework/Http/Dispatcher.php line 99
    OC\AppFramework\Http\Dispatcher->executeController(OCA\Notification … {}, “listNotifications”)
  9. /var/www/nextcloud/lib/private/AppFramework/App.php line 126
    OC\AppFramework\Http\Dispatcher->dispatch(OCA\Notification … {}, “listNotifications”)
  10. /var/www/nextcloud/lib/private/AppFramework/Routing/RouteActionHandler.php line 47
    OC\AppFramework\App::main(“OCA\Notificati … r”, “listNotifications”, OC\AppFramework\ … {}, {apiVersion: "v2 … "})
  11. <>
    OC\AppFramework\Routing\RouteActionHandler->__invoke({apiVersion: "v2 … "})
  12. /var/www/nextcloud/lib/private/Route/Router.php line 297
    undefinedundefinedcall_user_func(OC\AppFramework\ … {}, {apiVersion: "v2 … "})
  13. /var/www/nextcloud/ocs/v1.php line 82
    OC\Route\Router->match("/ocsapp/apps/no … s")
  14. /var/www/nextcloud/ocs/v2.php line 24
    undefinedundefinedrequire_once("/var/www/nextcloud/ocs/v1.php")

GET /ocs/v2.php/apps/notifications/api/v2/notifications
from 92.157.yyy.xxx by zzzzz at 2019-10-26T21:44:56+00:00

Feel free to link this over to the telegram chat at https://t.me/nextcloudpi

When going to Settings - Apps, I can see My Apps but in the categories for different apps, below Customization", I only get the message “No apps found for your version” . Clearly something wrong with the internals of NCP.

Fix will be shipped with 15.0.13 / 16.0.6 / 17.0.1