opcode 2672 How to fix ????

[etrtyo0853]

public void readImpl() { GAME_VER = readC(); // 1 readH(); // 15 readH(); // 37 readC(); // 9 loginLength = readC(); passwordLength = readC(); login = readS(loginLength).trim(); password = readS(passwordLength).trim(); getConnection().setMac(NetworkUtil.parseMac(readB(6))); readH(); readC(); readB(4); readD(); readB(32); }