Bloqueio de acesso AVG Internet Security

Hello José.
Support here is currently available in English only.
You can either get technical support in Portuguese via email or continue here in English. If you choose to get help via email, please visit this web page https://support.avg.com/support_contact_form to submit your query.

Comprei o serviço AVG Internet Security, porém este anti vírus quando ativado bloqueia o acesso a alguns sites de compra, como Americanas.com, Shoptime, Submarino, Mercado Livre entre outros. Mas, agora, está interferindo no acesso à caixa de mensagens do meu próprio site, dificultando o funcionamento normal. Testei e constatei que quando desativo o anti vírus tenho acesso livre aos sites mencionados e outros.
Gostaria que informassem a razão deste problema. Aguardo resposta.

Hello José.
Support here is currently available in English only.
You can either get technical support in Portuguese via email or continue here in English. If you choose to get help via email, please visit this web page https://support.avg.com/support_contact_form to submit your query.