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Hmmm... It sounds like you might be close to an airport or other no fly zone. We do not get an error when this is the case so we can't pass the information along to the user. We would love to if we could. We hate mystery errors more than anyone.
You could try flying that site at a lower altitude just to see if it will take off but check the Fly Safe site http://www.dji.com/flysafe to see if that could be the issue.