Notification text "[object Object]", not going away with updates

Nextcloud version: 17.0.5
Operating system and version: archlinux
Nginx version: 1.16.1
PHP version: 7.3

On any page of my nextcloud instance, I get the following notification in the top right corner:
Screenshot from 2020-04-14 19-46-34

I am getting this annoying notification on every page in every app. It has also survived a few updates, at least the last two updates (stable branch).

I’d greatly appreciate any idea to narrow down the cause!

The output of your Nextcloud log in Admin > Logging:

Error	PHP	stat(): stat failed for ftp://xxx:xxx@137.226.141.180/3tbhdd/xxx at /usr/share/webapps/nextcloud/apps/files_external/lib/Lib/Storage/StreamWrapper.php#127	
2020-04-14T19:49:36+0200
Error	PHP	stat(): stat failed for ftp://xxx:xxx@137.226.141.180/3tbhdd/xxx at /usr/share/webapps/nextcloud/apps/files_external/lib/Lib/Storage/StreamWrapper.php#127	
2020-04-14T19:49:35+0200
Error	PHP	stat(): stat failed for ftp://xxx:xxx@137.226.141.180/3tbhdd/xxx at /usr/share/webapps/nextcloud/apps/files_external/lib/Lib/Storage/StreamWrapper.php#127	
2020-04-14T19:49:35+0200
Debug	core	SCSSCacher: /apps/deck/css/style.scss compiled and successfully cached	
2020-04-14T19:49:18+0200
Debug	no app in context	Failed to get icon file /img/app-dark.svg	
2020-04-14T19:49:18+0200
Debug	music	No unscanned music files for user amo	
2020-04-14T19:49:17+0200
Debug	music	Cover image of album 26043 is large (175312 B), skip caching	
2020-04-14T19:49:15+0200
Error	PHP	fread() expects parameter 1 to be resource, null given at /usr/share/webapps/nextcloud/apps/music/3rdparty/getID3/getid3/getid3.php#2054	
2020-04-14T19:49:15+0200
Error	PHP	ftell() expects parameter 1 to be resource, null given at /usr/share/webapps/nextcloud/apps/music/3rdparty/getID3/getid3/getid3.php#2020	
2020-04-14T19:49:15+0200
Error	PHP	fseek() expects parameter 1 to be resource, null given at /usr/share/webapps/nextcloud/apps/music/3rdparty/getID3/getid3/getid3.php#2097	
2020-04-14T19:49:15+0200
Error	PHP	Undefined index: filesize at /usr/share/webapps/nextcloud/apps/music/3rdparty/getID3/getid3/module.tag.apetag.php#41	
2020-04-14T19:49:15+0200
Error	PHP	stat(): stat failed for ftp://xxx:xxx@137.226.141.180/3tbhdd/xxx at /usr/share/webapps/nextcloud/apps/files_external/lib/Lib/Storage/StreamWrapper.php#127	
2020-04-14T19:49:09+0200
Error	PHP	stat(): stat failed for ftp://xxx:xxx@137.226.141.180/3tbhdd/xxx at /usr/share/webapps/nextcloud/apps/files_external/lib/Lib/Storage/StreamWrapper.php#127	
2020-04-14T19:49:09+0200
Error	PHP	stat(): stat failed for ftp://xxx:xxx@137.226.141.180/3tbhdd/xxx at /usr/share/webapps/nextcloud/apps/files_external/lib/Lib/Storage/StreamWrapper.php#127	
2020-04-14T19:49:09+0200
Debug	core	SCSSCacher: /apps/phonetrack/css/Leaflet.LinearMeasurement.scss compiled and successfully cached	
2020-04-14T19:49:08+0200
Debug	no app in context	Failed to get icon file /img/app-dark.svg	
2020-04-14T19:49:08+0200
Error	PHP	stat(): stat failed for ftp://xxx:xxx@137.226.141.180/3tbhdd/2015.CC.16.1.x64 at /usr/share/webapps/nextcloud/apps/files_external/lib/Lib/Storage/StreamWrapper.php#127	
2020-04-14T19:49:04+0200
Debug	core	SCSSCacher: /apps/calendar/css/calendar.scss compiled and successfully cached	
2020-04-14T19:49:00+0200
Debug	no app in context	Failed to get icon file /img/app-dark.svg	
2020-04-14T19:49:00+0200
Debug	core	SCSSCacher: /apps/contacts/css/contacts.scss compiled and successfully cached	
2020-04-14T19:48:55+0200
Debug	no app in context	Failed to get icon file /img/app-dark.svg	
2020-04-14T19:48:54+0200
Debug	mail	Extracted 0 itinerary entries from the message HTML body	
2020-04-14T19:48:39+0200
Debug	mail	loading messages of folder <SU5CT1g=>	
2020-04-14T19:48:27+0200
Debug	no app in context	Failed to get icon file /img/app-dark.svg	
2020-04-14T19:48:25+0200
Debug	core	SCSSCacher: /apps/files/css/upload.scss compiled and successfully cached	
2020-04-14T19:48:17+0200
Debug	no app in context	Failed to get icon file /img/app-dark.svg	
2020-04-14T19:48:17+0200
Debug	no app in context	JSCombiner: successfully cached: merged.js	
2020-04-14T19:48:16+0200
Debug	core	OC_Image->fixOrientation() Orientation: -1	
2020-04-14T19:48:15+0200
Debug	core	OC_Image->fixOrientation() Image is not a JPEG.	
2020-04-14T19:48:15+0200
Debug	maps	Could not find resource file "/apps/maps/js/filetypes.js"	
2020-04-14T19:48:11+0200
Debug	maps	Could not find resource file "/apps/maps/js/filetypes.js"	
2020-04-14T19:48:09+0200
Debug	cron	Finished OCA\DAV\BackgroundJob\EventReminderJob job with ID 5678 in 0 seconds	
2020-04-14T19:47:51+0200
Debug	cron	Run OCA\DAV\BackgroundJob\EventReminderJob job with ID 5678	
2020-04-14T19:47:51+0200
Debug	cron	Finished OCA\Deck\Cron\CardDescriptionActivity job with ID 5902 in 0 seconds	
2020-04-14T19:47:51+0200
Debug	cron	Run OCA\Deck\Cron\CardDescriptionActivity job with ID 5902	
2020-04-14T19:47:51+0200
Debug	cron	Finished OCA\Deck\Cron\ScheduledNotifications job with ID 5901 in 0 seconds	
2020-04-14T19:47:51+0200
Debug	cron	Run OCA\Deck\Cron\ScheduledNotifications job with ID 5901	
2020-04-14T19:47:51+0200
Debug	cron	Finished OCA\Deck\Cron\DeleteCron job with ID 5900 in 0 seconds	
2020-04-14T19:47:51+0200
Debug	cron	Run OCA\Deck\Cron\DeleteCron job with ID 5900	
2020-04-14T19:47:51+0200
Debug	music	skipped - file is outside of specified music folder	
2020-04-14T19:46:46+0200
Debug	music	update - /amo/files/Fotos/Screenshot from 2020-04-14 19-46-34.png	
2020-04-14T19:46:46+0200
Debug	maps	Could not find resource file "/apps/maps/js/filetypes.js"	
2020-04-14T19:44:09+0200
Debug	cron	Finished OCA\Files\BackgroundJob\CleanupFileLocks job with ID 8 in 0 seconds	
2020-04-14T19:42:50+0200
Debug	cron	Run OCA\Files\BackgroundJob\CleanupFileLocks job with ID 8	
2020-04-14T19:42:50+0200
Debug	cron	Finished OC\Core\BackgroundJobs\BackgroundCleanupUpdaterBackupsJob job with ID 11904 in 10 seconds	
2020-04-14T19:38:07+0200
Info	no app in context	Cleanup finished	
2020-04-14T19:38:07+0200
Info	no app in context	Removing /usr/share/webapps/nextcloud/data/updater-occvnayusxpv/backups/nextcloud-17.0.1.1 ...	
2020-04-14T19:37:57+0200
Info	no app in context	List of all directories that will be deleted: ["\/usr\/share\/webapps\/nextcloud\/data\/updater-occvnayusxpv\/backups\/nextcloud-17.0.1.1"]	
2020-04-14T19:37:57+0200
Info	no app in context	/usr/share/webapps/nextcloud/data/updater-occvnayusxpv/backups exists - start to clean it up	
2020-04-14T19:37:57+0200
Debug	cron	Run OC\Core\BackgroundJobs\BackgroundCleanupUpdaterBackupsJob job with ID 11904	
2020-04-14T19:37:57+0200
Debug	cron	Finished OCA\Files_Versions\BackgroundJob\ExpireVersions job with ID 5 in 0 seconds	
2020-04-14T19:37:56+0200
Debug	cron	Run OCA\Files_Versions\BackgroundJob\ExpireVersions job with ID 5	
2020-04-14T19:37:56+0200
Debug	cron	Finished OCA\Support\BackgroundJobs\CheckSubscription job with ID 2298 in 0 seconds	
2020-04-14T19:37:56+0200
Debug	cron	Run OCA\Support\BackgroundJobs\CheckSubscription job with ID 2298	
2020-04-14T19:37:56+0200
Debug	cron	Finished OC\Log\Rotate job with ID 1785 in 0 seconds	
2020-04-14T19:37:56+0200
Debug	cron	Run OC\Log\Rotate job with ID 1785	
2020-04-14T19:37:56+0200
Debug	cron	Finished OCA\Files_Trashbin\BackgroundJob\ExpireTrash job with ID 4 in 0 seconds	
2020-04-14T19:37:56+0200
Debug	cron	Run OCA\Files_Trashbin\BackgroundJob\ExpireTrash job with ID 4	
2020-04-14T19:37:56+0200
Debug	cron	Finished OC\Authentication\Token\DefaultTokenCleanupJob job with ID 1784 in 0 seconds	
2020-04-14T19:37:56+0200
Debug	cron	Invalidating remembered session tokens older than 2020-03-30T17:37:56+00:00	
2020-04-14T19:37:56+0200
Debug	cron	Invalidating session tokens older than 2020-04-13T17:37:56+00:00	
2020-04-14T19:37:56+0200
Debug	cron	Invalidating remembered session tokens older than 2020-03-30T17:37:56+00:00	
2020-04-14T19:37:56+0200
Debug	cron	Invalidating session tokens older than 2020-04-13T17:37:56+00:00	
2020-04-14T19:37:56+0200
Debug	cron	Run OC\Authentication\Token\DefaultTokenCleanupJob job with ID 1784	
2020-04-14T19:37:56+0200
Debug	cron	Finished OCA\DAV\BackgroundJob\UpdateCalendarResourcesRoomsBackgroundJob job with ID 2295 in 0 seconds	
2020-04-14T19:37:56+0200
Debug	cron	Run OCA\DAV\BackgroundJob\UpdateCalendarResourcesRoomsBackgroundJob job with ID 2295	
2020-04-14T19:37:56+0200
Debug	cron	Finished OC\Preview\BackgroundCleanupJob job with ID 2293 in 1 seconds	
2020-04-14T19:37:56+0200
Debug	cron	Run OC\Preview\BackgroundCleanupJob job with ID 2293	
2020-04-14T19:37:55+0200
Debug	cron	Finished OCA\Activity\BackgroundJob\EmailNotification job with ID 2 in 0 seconds	
2020-04-14T19:37:55+0200
Debug	cron	Run OCA\Activity\BackgroundJob\EmailNotification job with ID 2	
2020-04-14T19:37:55+0200
Debug	cron	Finished OCA\News\Cron\Updater job with ID 6388 in 4 seconds	
2020-04-14T19:37:55+0200
Debug	news	Feed https://forum.manjaro.org/c/announcements/stable-updates.rss was modified since last fetch. #0 items	
2020-04-14T19:37:55+0200
Info	news	correct public id for node Stable Updates - Manjaro Linux Forum	
2020-04-14T19:37:55+0200
Info	news	correct last modified date for feed Stable Updates - Manjaro Linux Forum	
2020-04-14T19:37:55+0200
Debug	news	accurate parser : FeedIo\Parser\XmlParser	
2020-04-14T19:37:55+0200
Info	news	the stream is modified, parsing it	
2020-04-14T19:37:55+0200
Debug	news	response ok, now turning it into a document	
2020-04-14T19:37:55+0200
Info	news	hitting https://forum.manjaro.org/c/announcements/stable-updates.rss	
2020-04-14T19:37:54+0200
Debug	news	start reading https://forum.manjaro.org/c/announcements/stable-updates.rss	
2020-04-14T19:37:54+0200
Debug	news	read access : https://forum.manjaro.org/c/announcements/stable-updates.rss into a feed instance (feed class : FeedIo\Feed)	
2020-04-14T19:37:54+0200
Debug	news	Feed https://nextcloud.com/blog/feed/ was modified since last fetch. #0 items	
2020-04-14T19:37:54+0200
Info	news	correct public id for node The latest updates – Nextcloud	
2020-04-14T19:37:54+0200
Info	news	correct last modified date for feed The latest updates – Nextcloud	
2020-04-14T19:37:54+0200
Debug	news	accurate parser : FeedIo\Parser\XmlParser	
2020-04-14T19:37:54+0200
Info	news	the stream is modified, parsing it	
2020-04-14T19:37:54+0200
Debug	news	response ok, now turning it into a document	
2020-04-14T19:37:54+0200
Info	news	hitting https://nextcloud.com/blog/feed/	
2020-04-14T19:37:53+0200
Debug	news	start reading https://nextcloud.com/blog/feed/	
2020-04-14T19:37:53+0200
Debug	news	read access : https://nextcloud.com/blog/feed/ into a feed instance (feed class : FeedIo\Feed)	
2020-04-14T19:37:53+0200
Debug	news	Feed https://matomo.org/blog/feed was not modified since last fetch. old: Fri, 29 Nov 2019 01:02:59 +0000, new: 	
2020-04-14T19:37:53+0200
Info	news	correct public id for node 	
2020-04-14T19:37:53+0200
Info	news	correct last modified date for feed 	
2020-04-14T19:37:53+0200
Debug	news	response ok, now turning it into a document	
2020-04-14T19:37:53+0200
Info	news	hitting https://matomo.org/blog/feed	
2020-04-14T19:37:53+0200
Debug	news	Feed https://matomo.org/blog/feed was not modified since last fetch. old: Fri, 29 Nov 2019 01:02:59 +0000, new: 	
2020-04-14T19:52:56+0200
Info	news	correct public id for node 	
2020-04-14T19:52:56+0200
Info	news	correct last modified date for feed 	
2020-04-14T19:52:56+0200
Debug	news	response ok, now turning it into a document	
2020-04-14T19:52:56+0200
Info	news	hitting https://matomo.org/blog/feed	
2020-04-14T19:52:55+0200
Debug	news	start reading https://matomo.org/blog/feed	
2020-04-14T19:52:55+0200
Debug	news	read access : https://matomo.org/blog/feed into a feed instance (feed class : FeedIo\Feed)	
2020-04-14T19:52:55+0200
Debug	news	Feed https://www.lineageos.org/feed.xml was not modified since last fetch. old: Thu, 09 Apr 2020 19:30:21 +0000, new: DateTime Object ( [date] => 2020-04-09 19:30:21.000000 [timezone_type] => 2 [timezone] => GMT ) 	
2020-04-14T19:52:55+0200
Info	news	correct public id for node 	
2020-04-14T19:52:55+0200
Debug	news	found last modified: Thu, 09 Apr 2020 19:30:21 +0000	
2020-04-14T19:52:55+0200
Info	news	correct last modified date for feed 	
2020-04-14T19:52:55+0200
Debug	news	response ok, now turning it into a document	
2020-04-14T19:52:55+0200
Info	news	hitting https://www.lineageos.org/feed.xml	
2020-04-14T19:52:55+0200
Debug	news	start reading https://www.lineageos.org/feed.xml	
2020-04-14T19:52:55+0200
Debug	news	read access : https://www.lineageos.org/feed.xml into a feed instance (feed class : FeedIo\Feed)	
2020-04-14T19:52:55+0200
Debug	news	Feed https://blog.ghost.org/rss/ was modified since last fetch. #0 items	
2020-04-14T19:52:55+0200
Info	news	correct public id for node The Ghost Blog	
2020-04-14T19:52:55+0200
Info	news	correct last modified date for feed The Ghost Blog	
2020-04-14T19:52:55+0200
Debug	news	accurate parser : FeedIo\Parser\XmlParser	
2020-04-14T19:52:55+0200
Info	news	the stream is modified, parsing it	
2020-04-14T19:52:55+0200
Debug	news	response ok, now turning it into a document	
2020-04-14T19:52:55+0200
Info	news	hitting https://blog.ghost.org/rss/	
2020-04-14T19:52:54+0200
Debug	news	start reading https://blog.ghost.org/rss/	
2020-04-14T19:52:54+0200
Debug	news	read access : https://blog.ghost.org/rss/ into a feed instance (feed class : FeedIo\Feed)	
2020-04-14T19:52:54+0200
Debug	news	Added item Mixxx 2.1.0 has arrived! for feed Mixxx Announcements publishdate: 1524078275	
2020-04-14T19:52:54+0200
Debug	news	Feed http://feeds.launchpad.net/mixxx/announcements.atom was modified since last fetch. #1 items	
2020-04-14T19:52:54+0200
Debug	news	accurate parser : FeedIo\Parser\XmlParser	
2020-04-14T19:52:54+0200
Info	news	the stream is modified, parsing it	
2020-04-14T19:52:54+0200
Debug	news	response ok, now turning it into a document	
2020-04-14T19:52:54+0200
Info	news	hitting http://feeds.launchpad.net/mixxx/announcements.atom	
2020-04-14T19:52:54+0200
Debug	news	start reading http://feeds.launchpad.net/mixxx/announcements.atom	
2020-04-14T19:52:54+0200
Debug	news	read access : http://feeds.launchpad.net/mixxx/announcements.atom into a feed instance (feed class : FeedIo\Feed)	
2020-04-14T19:52:54+0200

The output of your config.php file in /path/to/nextcloud (make sure you remove any identifiable information!):

<?php
$CONFIG = array (
  'instanceid' => 'xxx',
  'passwordsalt' => 'xxx',
  'secret' => 'xxx',
  'trusted_domains' => 
  array (
    0 => 'xxx',
    1 => 'xxx',
    2 => 'xxx',
    3 => 'xxx',
    4 => 'xxx',
  ),
  'datadirectory' => '/usr/share/webapps/nextcloud/data',
  'overwrite.cli.url' => 'xxx',
  'memcache.local' => '\\OC\\Memcache\\Redis',
  'memcache.distributed' => '\\OC\\Memcache\\Redis',
  'redis' => 
  array (
    'host' => '/run/redis/redis.sock',
    'port' => 0,
  ),
  'memcache.locking' => '\\OC\\Memcache\\Redis',
  'dbtype' => 'mysql',
  'version' => '17.0.5.0',
  'logtimezone' => 'UTC',
  'installed' => true,
  'theme' => '',
  'loglevel' => 0,
  'maintenance' => false,
  'mail_smtpmode' => 'smtp',
  'mail_smtpsecure' => 'ssl',
  'mail_smtpauthtype' => 'LOGIN',
  'mail_from_address' => 'xxx',
  'mail_domain' => 'xxx',
  'mail_smtphost' => 'xxx',
  'mail_smtpport' => '465',
  'dbname' => 'nextcloud',
  'dbhost' => 'localhost:/run/mysqld/mysqld.sock',
  'dbuser' => 'xxx',
  'dbpassword' => 'xxx',
  'updater.release.channel' => 'stable',
  'mail_smtpauth' => 1,
  'mail_smtpname' => 'xxx',
  'mail_smtppassword' => 'xxx',
  'mysql.utf8mb4' => true,
  'has_rebuilt_cache' => true,
  'updater.secret' => 'xxx',
);

The only interesting thing in the nginx log:

access forbidden by rule, client: xxx.xxx.xxx.xxx, server: xxx, request: "GET /data/.ocdata?t=1586886249111 HTTP/2.0", host: "xxx"

With Nextcloud 18 the notification is gone :grinning:

Oh, that’s what I thought… but the exact same old [object object] error popup notification is back.
Did not see it for a while after the update to 18, but now it is back =(
Does anyone have an idea?

After a while and some upgrades I was able to observe that the mentioned annoying “[object object]” notification disappears after every upgrade, but then reappears after quite some time using nextcloud (after a few weeks maybe)

It was gone in 19.0.1. But returned with 19.0.2. I’m using the official docker image.

Me too it seems that it appears again each time there is a new version available.
It’s fine for a while on 19.0.1 but appears when 19.0.2 is available but not installed. Disappears when upgraded.
Then comes back when 19.0.3 is available.
And then again on 19.0.3 when 19.0.4 is available.
When [object object] is shown, it seems also that the Impersonate app can’t connect and it doesn’t work anymore until everything is upgraded.
I have several nextcloud installs, but not all show this behavior. But the ones who do have been behaving like this for months, back to each 17.n and 18.n versions.