Hello, at first my english is not very good, beacus i am from Thailand, so pleas dont hate me if i do any misstakes 

at Friday, i was go to buy me Sins of a Solar Empire, in my City, for me in My little brother, we pay 40$
but after i was home, i see the guy sell me a crack, and i had think he sell me the right thing, so i am not sure if it is okay to ask for help, but i have care my money for 2 months, to buy it, beacus i dont have so much, so its relly sad for me that now i cant play it in Mulitplayer


When i try to play multiplayer, there allways stand  "this map needed follow DLC: String not found" it dont matter what for a map it is, i have try all maps, all size, alls options T_T

but it dont work, when i try to play then with my little brother, he can join my room, but then when we start he get kicked, beacus of this error, and the game is finish

can someone pleas help me ?