message: fix: fast merkle proof type error fix
diff: @@ -57,7 +57,15 @@ export default class ProofsUtil {
  }
  static recursiveZeroHash(n: number, web3) {
  - if (n === 0) return '0x0000000000000000000000000000000000000000000000000000000000000000'
  + if (n === 0)
  + return ethUtils.keccak256(
  + ethUtils.toBuffer(
  + web3.eth.abi.encodeParameters(
  + ['bytes32'],
  + ['0x0000000000000000000000000000000000000000000000000000000000000000']
  + )
  + )
  + )
  const subHash = this.recursiveZeroHash(n - 1, web3)
  return ethUtils.keccak256(
  ethUtils.toBuffer(web3.eth.abi.encodeParameters(['bytes32', 'bytes32'], [subHash, subHash]))
  