Oh, here it is.
for(int i = 0; i < numberOfSensors; i++){
cs_sensor[i] = new CapacitiveSensor(capSenseSend,sensorPin);
}
I had the problem right, but when I went looking for the one that was wrong I assumed that you had left this fixed. sensorPin IS an array and needs an index.
Post 20 you said you fixed it. Post 24 when you post new code it is still wrong.