Unable to Disable Slider on Home Page – Engrave Lite

Hello ,

I need help to disable slider on the home page of http://www.fareed.ca
I have tried my level best to disable the slider but unable to do it. There is a option under Theme Options -> Homepage section to disable Home Slider as you can see the screen. When i save after clicking on Disable button , it doesn’t save. I have no idea why it is not disabling.

Can you please help

Regards