Error while deleting mailbox

[Andreas]

Has anybody seen this error yet?

[andreas at pandora andreas]$ cyradm --user andreas --authz andreas localhost
Password: 
Cannot find termcap: Can't find a valid termcap file at /usr/lib/perl5/5.8.0/Term/ReadLine.pm line 333

localhost.distro.conectiva> cm INBOX.test
localhost.distro.conectiva> dm INBOX.test
deletemailbox: System I/O error
localhost.distro.conectiva> 

("andreas" is not an administrator, just a regular user).

Logs:
Feb 25 14:53:18 pandora imapd[25128]: DBERROR db4: DB handle previously used in transaction, missing transaction handle
Feb 25 14:53:18 pandora imapd[25128]: DBERROR: error fetching user.andreas.test: Invalid argument
Feb 25 14:53:18 pandora imapd[25128]: DBERROR: error fetching user.andreas.test: cyrusdb error

I also get this while trying to delete the mailbox from other imap clients such as kmail
or mutt.


cyrus-imapd-2.1.16, sasl-2.1.17 and db-4.2.52

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