I didn't had any idea why my apps violates them, so I've asked them. Serveral times - without a reply (Well, I got some automatic replies telling me they won't tell me anything).
Yesterday I got several mails that my apps got unpublished (they weren't available publicly before because of my app account ban), and google stated that my apps/privacy pages linked on the store page contained porn material. They attached a screenshot, and... yay.... everything... full of porn.
So finally I realised someone must have been hacked my account.
What can I do to address this issue? It's seems impossible to get contact to a real human being at google who could help me with this issue. No matter which form I use or which mail that I've found I used, I'm only getting answers by mail bots.
This is frustrating, because I'm doing apps for a living and I have to support my family with the earnings. I still hope I can get the issues addressed but threads I've found on the web states that if you google account got banned you can't do anything to get it back - no matter if it was your fault or not :(