This should fix the problem:
https://github.com/traccar/traccar-web/commit/4cdaec503858f64271652c1b7aa4d4734823e8f9
Is happening to me when deleting a device.
It's completely unrelated to devices.
Thanks for the update.
Not seeing a new build with the patch applied, how is this installed?
Applied where? It's not in the official release at, as you can probably see.
Applied to the build.
I've no idea how the releases are done, you have done a fix, would have expected a patched release to have been made available.
Is it possible for me to patch my installation? I've little idea how Linux builds work (my background is in Windows dev).
It's not a critical issue, so obviously we won't release a completely new version just to fix this one thing.
If you want to build it yourself, we have plenty of documentation for it. Otherwise you can wait for the next official release.
I've a problem trying to enter any API keys for the additional mapping.
Fresh install (as of 31/12/2025) of Traccar on a Google VM (Debian 12) using the latest version (6.11.1). Server is running and receiving positions from trackers.
Settings > Preferences > Click on Map Overlay drop-down (image 1)
Select any (e.g. Google Traffic).
Attributes form opens asking for Google API key (as expected - Image 2)
But a couple of seconds afterwards the screen refreshes with an error dump (image 3).
When the error occurs, the URL also changes from
/settings/preferences
to
/settings/user/1
Hitting refresh in the browser clears the error, but leaves you on the Settings > Account page.
Jim