exit status 1

#include <TimeLib.h>

const int IR_Sensor1=33;
const int IR_Sensor2=34;

void setup() {
pinMode(IR_Sensor1,INPUT);
pinMode(IR_Sensor1,INPUT);
Serial.begin(9600);

}

void loop()
{
if(digitalRead(IR_Sensor1)==HIGH)
{
int h=now.second();
}
if(digitalRead(IR_Sensor1)==HIGH)
{
int h1=now.second();
}
int x=h-h1;
int s=1000*x;
}

I AM HAVING A ERROR AS EXIT STATUS 1 . Please can anyone help me to figure out this error