Ataque de hackers del internet security

buenos dias, me puden dar una idea del porque la opcion contra ataque de hackers se me desactiva frecuentemente y como puedo evitarlo.

Hi Luis, 

AVG Support via community forum is available only in English. For a translation, for example you can use https://translate.google.com

We will help you in this. 
It was a bug and our developers have fixed it…

Kindly use clear from the below link and uninstall the AVG : 
https://support.avg.com/SupportArticleView?urlname=Uninstall-AVG-software-Clear-Remover
Restart the PC and reinstall the AVG to fix this issue.