CCS/TM4C1294NCPDT: I can't run the program on TM4C1294

Part Number: TM4C1294NCPDT

Tool/software: Code Composer Studio

Hello! my name is Antonio Uriel and I'm from Mexico City, Mexico. I have a problem with the code in the code composer studio, this appears after I stop running the program 

I made a simple program to flash a led that has the card that is the EK-TM4C1294 using the systickTimer I exposed my code, add the libraries including properties add tiva ware and driverlib.lib, I do not know if I miss add or something, I hope your prompt response is a bit urgent.

CODIGO:

#include <stdint.h>
#include <stdbool.h>
#include "inc/tm4c1294ncpdt.h"
#include "driverlib/sysctl.h"
#include "driverlib/gpio.h"
#include "inc/hw_memmap.h"
#include "driverlib/systick.h"

//VARIABLES GLOBALES
int estado=0;
//FUNCIONES GLOBALES
void DelaySysTick(int tiempo);

void main(void)
{
    //PUERTO N
    //Habilita el modulo GPIO N
    SysCtlPeripheralEnable(SYSCTL_PERIPH_GPION);
    //Espera que el modulo GPIO N este listo
    while(!SysCtlPeripheralReady(SYSCTL_PERIPH_GPION));

    //Configuramos el puerto N 0 y 1 como salidas
    GPIOPinTypeGPIOOutput(GPIO_PORTN_BASE,GPIO_INT_PIN_0|GPIO_INT_PIN_1);
//******************************************PROGRAMA PRINCIPAL***************************************************
    while(true)
    {
        GPIOPinWrite(GPIO_PORTN_BASE,GPIO_INT_PIN_0|GPIO_INT_PIN_1,estado);
        estado^=0x03;
        DelaySysTick(16000000);
    }
}
void DelaySysTick(int tiempo)
{
    //Configuramos y habilitamos el Systick
    SysTickPeriodSet(tiempo);
    SysTickEnable();

    while(SysTickValueGet()==0);

    SysTickDisable();
}