designgrid

Hello there, I have installed prestashop for a shopping site and using 'Default Bootstrap' theme. There is a white space / margin in left side when i see the website in my mobile device. Right side content is cutting. Also there is white transparent box in right bottom corner on product image. How to remove that? My url is : https://www.ramajewellery.com/ and I checked in karbonn android device. Please help as I am new to prestashop.