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On-access scanning disabled itself, will not allow me to turn it back on; on-demand scan not working

Hello and thank you in advance to anyone who can help me.  I have two issues:

(1) On-access scanning turned itself off and I am not able to turn it back on.  When I clicked on the button next to "the on-access scanner is off", it just says "Start scanning" and is greyed.

(2) When I try to do an on-demand scan, it scans for less than a second and stops.  Message says no threats but "issues detected".

Here is a log I came across if this helps:

Sophos Anti-Virus
Product version: 9.2.7
Copyright Copyright 1993-2012 Sophos Ltd. All rights reserved.

Scan name: "Scan Local Drives"
Scan items:
Configuration:
    Scan inside archives and compressed files: Yes
    Automatically clean up threats: Yes
    Action on infected files: Delete
    Live Protection enabled: Yes

Scan started at 2015-08-07 15:38:45 -0400

New volume detected at /
Unable to initialize threat detection engine: virus data missing or unusable.

Scan stopped at 2015-08-07 15:38:45 -0400.

:1021535


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  • I am using the free version of Sophos for years, without major issues. After updating to 9.4 Sophos worked fine until the 1st automatic update. In my case after the 1st AutoUpate "on Access scanning" is deactivated. And I am not able to activate it again. I also tried a complete uninstall and installed Sophos again. The problem always occurs after the next Auto Update.
    The listed Terminal commands don't work.
  • Same problem… app will not load. While watching Activity Monitor… Sophos Anti-Virus times out with "Not Responding". SophosUIServer has "Not Responding" also. Crash log for SAV indicates "Terminating app for Crash log due to uncaught exception". SophosUIServer indicates "Library not loaded".

    I have installed/uninstalled many times with and without System reboots. Turned off Little Snitch filtering… even created Little Snitch rules completely allowing all Sophos activity to pass. Nada!

    The listed Terminal commands do not work for me either.

    I hate to say it… but this anomaly does not give a vote of confidence toward protecting users from the bad guys! Many users are having same/similar problems as posted at various tech sites… including this one.
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  • Same problem… app will not load. While watching Activity Monitor… Sophos Anti-Virus times out with "Not Responding". SophosUIServer has "Not Responding" also. Crash log for SAV indicates "Terminating app for Crash log due to uncaught exception". SophosUIServer indicates "Library not loaded".

    I have installed/uninstalled many times with and without System reboots. Turned off Little Snitch filtering… even created Little Snitch rules completely allowing all Sophos activity to pass. Nada!

    The listed Terminal commands do not work for me either.

    I hate to say it… but this anomaly does not give a vote of confidence toward protecting users from the bad guys! Many users are having same/similar problems as posted at various tech sites… including this one.
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