51733c36b1a36afae161ae95a62412fd04b7a9c6d64a39b71fc57b1f893a5e1c
Your transaction has 390 satoshi/byte fee and current recommended fee is over 900 satoshi/byte so you need to submit your tx id in one of the free tx accelerator service like viabtc tx accelerator.
Try to be first 100 submitter which will reset every hour forum time.
Free transaction accelerators are of no use ATM, all he can do is wait or can use btc.com accelerator and it's not cheap, it'll cost ~$650 for tx acceleration.