Feature Image Slider not updating

Hi Sakin, sorry, it's me again. Our homepage Feature Image Slider is not updating. I've tried deactivating recently updated plugins, including deactivating our cache plugin. I also tried deleting and re-adding images to the slider and it still won't update. Also, I always made sure to clear the cache every time I made a change to see if the slider updates and still no luck. Can you please help. Below is our website. Thanks, www.aedunlv.org