# Thread:0x000055c972f94c78

**URL:** <https://meta.discourse.org/t/thread-0x000055c972f94c78/225448>\
**Category:** Self-hosting\
**Created:** [April 27, 2022, 3:43pm UTC](https://meta.discourse.org/t/thread-0x000055c972f94c78/225448 "2022-04-27T15:43:04Z")\
**Posts on this page:** 1\
**Showing post:** 3

<div class="post-metadata">

**Author:** ![Justman10000](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/justman10000/32/252913_2.png) [@Justman10000](https://meta.discourse.org/u/Justman10000)\
**Post date:** [April 27, 2022, 4:15pm UTC](https://meta.discourse.org/t/thread-0x000055c972f94c78/225448/3 "2022-04-27T16:15:40Z")

</div>

Then I have this problem…

```plaintext
# --- Caused by: ---
# PG::UndefinedTable:
# ERROR: relation 'groups' does not exist
# LINE 8: WHERE a.attrelid = '"groups"'::regclass
# ^
# /usr/local/rvm/gems/ruby-3.0.2/gems/activerecord-6.1.4.7/lib/active_record/connection_adapters/postgresql/database_statements.rb:19:in `exec'
```

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