Replicated website?

Hi all,
I have an ecommerce store made on a platform called Storenvy in which I want to do SEO for, but I was told this is a replicated website and search engine will not claw for SEO. Is this true?

Thanks



I didn't find the right solution from the internet.
References:
http://forums.seochat.com/search-engine-optimization-28/replicated-website-493280.html

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