Why?

Look, I really am sorry for what ever happened in the Private SMP server, I don't know why am I banned, I don't know why my town got grieved, I just got on after doing some things, and the last thing I needed was to see my town destroyed and getting banned from the server. I just want to know why I am banned from the server, Why? What did I do? What rules did I break? I need to know, If there was a rule on the server about no Obsidian allowed, Then I didn't know. If I used too much light, I am sorry. If I built without permission then I am sorry. I wanted to build nearby so I wouldn't have to run 15 miles to get to spawn and back. I am approaching this at a calm manner, not going to rage because raging leads to failure, then drama, then being banned. All I want is a answer and to be allowed to go on the server again. That is all, nothing more and nothing less. Thank you.