# Error while processing route: adminGroups.index

**URL:** <https://meta.discourse.org/t/error-while-processing-route-admingroups-index/395008>\
**Category:** Support\
**Created:** [February 3, 2026, 3:46am UTC](https://meta.discourse.org/t/error-while-processing-route-admingroups-index/395008 "2026-02-03T03:46:14Z")\
**Posts on this page:** 1\
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**Author:** ![bdfl](https://avatars.discourse-cdn.com/v4/letter/b/ea666f/32.png) [@bdfl](https://meta.discourse.org/u/bdfl)\
**Post date:** [February 3, 2026, 3:46am UTC](https://meta.discourse.org/t/error-while-processing-route-admingroups-index/395008/1 "2026-02-03T03:46:14Z")

</div>

Hi, sorry if this isn’t the right place to post this. I upgraded to ESR v2026.1.0 (c013d80bc7) and I can’t reach my groups page in production on Docker.

I have no problem in dev on Ruby/Rails. The problem persists with custom theme and plugins disabled and CDN paused. Other admin routes work fine (/users, /site\_settings, etc.). The browser console shows “Error while processing route: adminGroups.index”. The groups API returns data correctly (/groups.json) but admin groups API returns 404 not found (/admin/groups.json).

Does anyone else have trouble navigating to the groups page from the admin UI?

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