无法通过Remix取消我的私人链中的合同

Question

在安装松露之前，我通过重新混合注入的web3将一些合同分配给了我的私有链。但是现在我做不到。我该怎么办？

pragma solidity ^0.4.18;

contract sum1 {

  function sum(uint a, uint b) public returns(uint c) {

      return a + b;
  }

}

ALERT: [ethjs-rpc] rpc error with payload {"id":7367126005047,"jsonrpc":"2.0","params":["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"],"method":"eth_sendRawTransaction"} Error: invalid sender

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