The problem is caused by a too-small fee for that transaction.
Bitcoin
- Way 1: Wait for over 48h (2–3 days) and that transaction will be rejected. :D
- Way 2: Re-broadcast your transaction to other nodes:
There some nodes here:
https://api.blockcypher.com/v1/btc/main/txs/push
https://blockchain.info/pushtx
https://api.blockchair.com/bitcoin/push/transaction…