Email broken on all domains > 1 week, "SELECT INBOX"

A few weeks ago Dreamhost was unable to bill me because my credit card had expired and took my domains offline. Last week I fixed it and paid the bill, everything is running fine now, except my email is returning a strange error on all domains:

ERROR: Could not complete request.
Reason Given: [SERVERBUG] Internal error occurred. Refer to server log for more information. [2010-10-06 15:39:58]

What should I do?[hr]
Seems to be a squirrelmail issue, mailboxes.domain.suffix works

I’ll suggest you to submit a ticket to DH support.