PHP код:
if(GetPlayerVehicleID(playerid) == 564 && FireShot[playerid] == 0 && KEY_FIRE & newkeys && IsValidObject(gRocketObj[playerid]))
You have not created an object but verify its existence before the shot
try this
PHP код:
if(GetPlayerVehicleID(playerid) == 564 && FireShot[playerid] == 0 && KEY_FIRE & newkeys)