... which is why this became a question (rather than a comment). Whenever I try to add a comment, I get

```
00 Internal Server Error
42P01: ERROR: relation "account_community" does not exist
LINE 2: insert into account_community(account_id,community_id,acco...
^
QUERY:
insert into account_community(account_id,community_id,account_community_regular_font_id,account_community_monospace_font_id)
select aid,cid,community_regular_font_id,community_monospace_font_id from community where community_id=cid
on conflict on constraint account_community_pkey do nothing;

CONTEXT: SQL function "_ensure_account_community" during startup
SQL function "new_chat" statement 4
```

Until very recently I could add comments. Of course I tried to reload the page.

**UPDATE**: Just now it worked again. Please feel free to delete the "question" if it is inappropriate (yet at the time of writing this was the only way I could contact anyone using tools on this site). Perhaps there will be an answer that tells others what to do in such situations.