You were sent coins that hadn't been confirmed in an earlier transaction, which itself was sent coins that hadn't been confirmed in an even earlier transaction.
This transaction sent yours unconfirmed coins.
https://blockchain.info/tx/e2ef31e16e74de11b3a3024e7d2270140707f7ba4c9671e875c05a95b7c4060cAnd this is the earliest transaction that started the mess off by sending unconfirmed coins. You need to submit this one to the viabtc accelerator first, then the one above it, and finally your transaction.
https://blockchain.info/tx/7be56596fb3bc67e73c389a10de2f92a3e6c03f4da2369126f22aa4ade693fd8Your transaction cannot confirm until the other two do.