Horde: Shared calendars of deleted users still show up

Fixit

Registered
Feb 25, 2007
1
0
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We have a client who use Horde shared calendars in their organisation. They all share
calendars, with each user making all of the others able to view,
edit and delete items in their calendar.

They had a couple of users who have now left. Their mailboxes have
been deleted from the CPanel mail server.

However, when a user opens Horde Calendar, clicks on the drop-down
"Select calendars to display", those deleted users still appear in the list
of available calendars to display. I want to remove them completely.

How can the calendars of the deleted users be removed manually please?

Cheers.