Centos 7 - High CPU - Savscand - FAILED-TO-UPDATE-FROM

Hi Community,

I am experiencing intermittent problems with savscand consuming all the CPU on my Centos 7 server.  The version of sophos that is installed is

./savdstatus --version
Copyright 1989-2020 Sophos Limited. All rights reserved.
Sophos Anti-Virus       = 9.16.2
Build Revision          = 2840711
Threat detection engine = 3.79.0
Threat data             = 5.77
Threat count            = 53271068
Threat data release     = Tue 04 Aug 2020 12:00:00 AM
Last update             = Wed 26 Aug 2020 09:38:55 AM BST

The error log show this repeating message when the cpu is being consumed

<log><category>update.failed</category><level>ERROR</level><domain>savupdate</domain><msg>ALL_UPDATE_SOURCES_FAILED</msg><time>1598343066</time></log>

<log><category>update.failed</category><level>ERROR</level><domain>savupdate</domain><msg>FAILED-TO-UPDATE-FROM %s</msg><time>1598343413</time><arg>sdds:SOPHOS</arg></log>

The connection of the server to the internet is ok. Can anyone help me understand what this msg is caused by and how to fix pls?

Many Thanks

Big Dog