Undefined array key "errors"

[mrclschstr]

I am using the WebDAV Push extension in my Nextcloud and I am very happy with it. Everything seems to be working fine, but the Nextcloud log is flooded with the following log messages all the time (I have replaced sensitive information with "XXX"):

{
    "reqId": "XXX",
    "level": 3,
    "time": "2025-04-03T16:39:53+00:00",
    "remoteAddr": "XXX",
    "user": "XXX",
    "app": "PHP",
    "method": "POST",
    "url": "/remote.php/dav/calendars/XXX/XXX/",
    "message": "Undefined array key \"errors\" at /var/www/html/custom_apps/dav_push/lib/Dav/SubscriptionManagementPlugin.php#269",
    "userAgent": "DAVx5/4.4.8-gplay (dav4jvm; okhttp/4.12.0) Android/15",
    "version": "30.0.7.2",
    "data": {
        "app": "PHP"
    }
}

Do you need more information? Should I be worried about this error?