Issue

• After upgrading your computer to macOS Big Sur, your ESET product displays the following error message:
  
  "Your computer is not protected: System extension required for Web and Email Protection was not started because of error. Try to restart macOS or reinstall the product."

Solution

1. Go to the Apple menu  and select System Preferences.
   
   
2. Click Network.
   
   
3. Select ESET Network Protection Proxy.
   
   
4. Click Connect.

Recurring error:

This problem (System extension required for Web and Email Protection was not started because of error) will occur again after a restart or shut down of the computer. We are currently working on a permanent solution for this issue.