Sophos software being removed automatically

Apologies - could somebody move this to the Sophos Central section please? Thanks

I have seen this behavior only in environments where the license had been expired for a while. Can you please verify that you have a valid license - click your account name (upper right of the user interface), select Licensing. .

Thanks Marcel. According to Sophos Central I can confirm that our current licence runs until Mar 31, 2023

In that case I would recommend to open a support case via the support portal: https://support.sophos.com/. In the lower right from the support portal you will also see an option to chat directly with the support team.  

Thank you for reaching the Community Forum,

Can you confirm if the tamper protection, which can be found on your Global policy, is Turned On? If not, you may need to turn it on to secure your endpoint application from sudden removal. This setting should be turned On as part of the recommended settings. 
In addition, can you confirm if there’s any uninstall script running in the background that may cause this sudden uninstallation of your endpoint application? You may need to verify this on your servers or use Autoruns.exe and run it on the affected device to see. Mostly you need to check the script under Scheduled task. 

BitLocker will still work for your Device encryption, even if device encryption is not installed on your system. However, the downside is that you won't be able to manage on your Sophos central, and retrieving the recovery key may be impossible if the key is not saved on the local desktop or is lost. 
You need tp push the device encryption via Sophos central if you wish to start managing them.