At https://etherscan.io/, I cannot find txhash,
Ask for help, thanks！
Hi @11125 welcome to the community! If you are not seeing the transaction on Etherscan that would mean it was never became part of a block and added to the blockchain. Can you share any additional information about those transaction, specifically the address that the transaction was sent from or to? That might help to see what is happening.
The problem has been solved, the reason is a nonce error, thank you！