Themes

I have just installed fresh copy of Moodle 3.0.2 in my hostgator domain. I have installed the Eguru theme on the Moodle platform. Everything is working fine except the slider image. The slider image is not changing, it has got static. There are three slider images by default. If I change the slider image manually by clicking on the sidebar then the slider image is working fine. But when I first load the website in the browser then the slider is not working. Hope I have described the issue clearly. I can not understand what is the exact problem. If anybody can help me regarding the same that would be great. Thank you