const web3 = new Web3(
"https://data-seed-prebsc-2-s3.binance.org:8545/"
);

`let myContract = new web3.eth.Contract(`abi,`contract_address`)

myContract.methods
.buy_ticket(1)
.send(
{
from: this.$store.state.acount,
to: res.contract_address,
value: value,
},
function (error, result) {
console.log(error);
console.log(result);
}
);

但是购买的时候会报Returned error: unknown account这个错误，能帮忙解决一下吗