Crawl errors Not Found

I am having the following problem : In Google Webmaster Tools it shows that i have over 100 Not Found Pages and most of them are linking to :

https://amansworldonline.com/amansworldonline.com/

Even my home page is linking to that according to Google Webmasters.
I have been looking in the code and nothing there . Anyone having any idea on where the problem might be coming from ?