error message {IMAP] Unable to upload message " Your Coral Account password) to folder INBOX ( expected date-year instead of 0001)

This message appears every time eM Client launches.  It applies to just one email. Whether or not relevant I Imported emails from a Live Mail system.
Two questions… The email doesnt seem to be on the server at 1and1 so I’m guessing its in the imported data. Is that likely to be correct as there is no trace of it in the Inbox on the system the messages have been exported from…
Is there a simple way to clear the message? The import of the email is unimportant.