You were correct sir, there was some situation, what i did is, i copied config file from outdated hosting server and earlier on new server and changed backlink path & db details..now I'm able to look through the site, but dealing with 2 new problem. View this youtube video , https://wildbookmarks.com/story18798168/opencart-kendin-tasarla-mod%C3%BCl%C3%BC-an-overview