I have tried in the antpool accelerator tool it seems down right now. Please wait for some time and use the below link I have given to accelerate your delayed transactioned. I have checked the address you have given it shows that one unconfirmed transaction is available in this public address.
https://www.antpool.com/user/prioritiseTransaction.htmAfter this you can use the viabtc or confirmtx accelerator but it will work on the prioritize timely transactions bro. So be first the every hour to accelerate it.
but this transaction is usdt, not btc. It transferred the value of 1992 TetherUS What should I do with it now? Who to write about usdt? It looks like poloniex is still too small fee
