[exim] Fw: paniclog after upgrade from 4.90_1 to 4.91

heloo
i killed all exim process, The error is still there, no mail goes outside domains

----- Original Message -----
From: Sławomir Dworaczek
To: exim-users@???
Sent: Monday, April 23, 2018 3:12 PM
Subject: paniclog after upgrade from 4.90_1 to 4.91


Afertupgrade from exim version 4.90_1 to 4.91 messages not sending to external host
Panic log : Delivery status for user@external_domain.com got 0 of 7 bytes (pipeheader) from transport process 13323 for transport smtp

How-to repair this error ?
regards
slawek