A sever security upgrade mandated by compliance with payment card security standards means that older software versions can no longer communicate with the website.  This has been the case since June 30.

To resolve this, please install the latest version by downloading direct from the website  https://www.archery-software.co.uk/software/

This is the same file as would be installed by the update service.

More information  https://www.archery-software.co.uk/security-upgrade/