I updated Sophos now I am getting these errors popping up repeatedly
Golden Rule - don't try to just "delete" an antivirus, they don't like it.

Use the Uninstaller - there is [was] one in the Applications folder. If you deleted that too, then you'll need to re-download it from Sophos

Note: If you have a business install, it will be protected by a Tamper Protection  layer &amp; will need the password, which is not the same as your login/admin password.

Ref: Sophos Anti-Virus for Mac: How to uninstall