Error in pyhon, pyautogui

I created a bot (macro) which has the function of making a few clicks on X time. I made the loop for this.

def afkLoop(): #Loop
    pycontrol.broken() #Função
    time.sleep(1800) #Timer
    afkLoop() 

def broken(): #Função
    print "["+(str(time.strftime("%H:%M:%S")))+"] Done.."

    pyautogui.click(104,14) #Aba 01
    time.sleep(3)
    pyautogui.press("up")
    pyautogui.press("down")

    time.sleep(3)    
    pyautogui.click(297,17) #Aba 02
    time.sleep(3)
    pyautogui.press("up")
    pyautogui.press("down")

    time.sleep(3)    
    pyautogui.click(475,11) #Aba 03
    time.sleep(3)
    pyautogui.press("up")
    pyautogui.press("down")

    time.sleep(3)    
    pyautogui.click(659,16) #Aba 04
    time.sleep(3)
    pyautogui.press("up")
    pyautogui.press("down")

The problem is that for some hours, the program closes, I got the error: pyautogui.FailSafeException: PyAutoGUI fail-safe triggered from mouse moving to upper-left corner. To disable this fail-safe, set pyautogui.FAILSAFE to False.

How can I solve it? I'm using python 2.7 and pyautogui.