Will this charger cord affect my iPhone?

I have an iPhone 5 and I bought a charger cord from Rue 21 because it was cheap. When I plug it in, it gives me a warning that it may not be recognized by the device. Does that mean anything, will it harm my phone at all? I just got a new iPhone because my other one randomly broke, but it wasn't from the cord because I stopped using it a couple months before.

Nothing will be effect just unplug it and again plug it in right way so that it can recognize and charge.
sometime my iphone 5 is aslo showing this message

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