I can find nothing that indicates she failed to comply with any Congressional request. She provided 900 pages of emails in response to a Congressional request, and provided "all" emails later.
I followed the conversation, but that law can only be broken by failing to respond to a request. You identified no such request. Thus, by your statements, it would be impossible for her to have broken that law. That's why I wasn't following. The first "email request Hillary congress" I found was in regards to Benghazi. So, that's where I got that. In direct reply to your statement, and as on topic as I could be.
If you think she broke a law by failing to follow a Congressional demand, you should specify which one you mean.