sophos-av and Debian8 (Jessie)

Hi all, recently I've upgarded from Debian Wheezy to Debian Jessie and have to use systemd as well. While the sophos-processes including the updater run fine with Debian 7 at least the update doesn't run under Debian 8 .

root@server:/etc/cron.hourly# systemctl status sav-protect.service
● sav-protect.service - LSB: Start the Sophos Anti-Virus daemon
   Loaded: loaded (/etc/init.d/sav-protect)
   Active: failed (Result: exit-code) since Do 2016-07-21 16:50:56 CEST; 4 days ago
  Process: 9216 ExecStart=/etc/init.d/sav-protect start (code=exited, status=1/FAILURE)

Jul 26 08:20:16 debmail1 savd[775]: update.updated: UPDATING_FROM_VERSION 9.12.0 3.64.3 5.29
Jul 26 08:20:16 debmail1 savd[775]: update.updated: Updating Sophos Anti-Virus....
                                    Updating SAVScan on-demand scanner
                                    Updating Virus Engine and Data...
Jul 26 08:20:16 debmail1 savd[775]: update.updated: UPDATED_TO_VERSION 9.12.0 3.64.3 5.29
Jul 26 08:20:16 debmail1 savd[775]: update.updated: SUCCESSFULLY_UPDATED_FROM sdds:SOPHOS
Jul 26 09:26:14 debmail1 savd[775]: update.check: SUCCESSFULLY_UPDATED_FROM sdds:SOPHOS
Warning: Journal has been rotated since unit was started. Log output is incomplete or unavailable.

Warning: Unit file changed on disk, 'systemctl daemon-reload' recommended.
Hint: Some lines were ellipsized, use -l to show in full.

The sav-protect daemon is running and works fine. What's wrong?

Regards

Stephan