[exim] *** spool format error: size=1775 ***

Hello all.

I use Exim-4.69 at FreeBSD-7.0-p9
Yesterday I found this in mailq:

22h  1.1K 1LOtCx-0000T2-0E <prof@???>
     *** spool format error: size=1819 ***
           support@???

And If I try to exim -M 1LOtCx-0000T2-0E - nothing happends.
I use Dovecot-1.1.8 as MDA.

What is that mean and how to fix it?

--
Best regards,
Proskurin Kirill