I was banned from the server and I do not know why

Hello friends?
First ... excuse me, my English (still) is not good! So to help me clarify what happened, I'll be using google translator!

A few days ago (maybe a month) was me and 3 other players (I can not remember the nick), in apc squad. After we lost our apc to 2 enemy apcs, we resolved to go infantry support our other apc, and soon After about 4 minutes my screen caught and I asked them if the server had fallen, and when they all spoke at the same time only I heard someone asking if he had been banned because his screen had also caught. And then I was notified of the ban!
So I checked on prspy if my squad had been banned. and I saw that the gunner playing with me was no longer online (the other two from the other apc I was not 100% sure about). "so I thought it might be some mistake or some bug" And about 2 days later I got home, I went to the server and still the ban


Ingame name:<CnEuHA3>ANTI-VIP
key hash
b1c498fe28c4ff9ea21d0e6cd98a82e3

Thank you! let's Play!!!