You can check it here that your gang or part of it took part in the battle.
https://steemit.com/drugwars-fight/@eduardog/re-hagstrom-achaemenes-gang-gift-for-drugwars-players-20190517t100855234z#@hagstrom/re-eduardog-re-hagstrom-achaemenes-gang-gift-for-drugwars-players-20190517t104456910z

Yeah change your gang and I won't attack you, and try getting in an active one at least, with a Discord server where you can talk with eacother.