Well, there is a contact form, but what you want them to do or say?
I mean, an Avast developer has give you his answer. Other users are also contributing to this topic.
This is not the expected situation, and most users don't see this happening.
So, why do you think this is not related to ZA or to other system components in your particular case? I mean, why all those are "free to go" and Avast is the real problem?
I am not completely discarding that possibility. I just want to understand (so maybe we can help you better), what makes you think that the "problem" is on Avast side, and not on any other side?