the problem is because somebody try a escrow transaction, but still not support by client
btsbots (unlocked) >>> blockchain_get_block 1209399
{
  "previous": "006648b96af11d06e3b6c55c8cf295d571148c51",
  "block_num": 1209399,
  "timestamp": "20141208T003100",
  "transaction_digest": "c8cf12fe3180ed901a58a0697a522f1217de72d04529bd255627a4ad6164f0f0",
  "next_secret_hash": "b4864ba1493f38fa226b9d49e404c329a73419ff",
  "previous_secret": "690d2d987911bed1ef2283a683045de12a3cdf2f",
  "delegate_signature": "206be773a62d0005d750a45dfd16a71b1a8bbb5c3b087582603c6b6f4df93acbd3bb55c0e3112e9ce02a99723088e78b8168f79f781212dd47a2a95faa701d0112",
  "user_transaction_ids": [
    "4a7efe44c91909c1214762c186b8c57ae12a16f3",
    "d307c1e97d427428f1d5859d2be608ff1b2ccc6f"
  ]
}
btsbots (unlocked) >>> blockchain_get_transaction 4a7efe44c91909c1214762c186b8c57ae12a16f3
{
  "trx": {
    "expiration": "20141208T013055",
    "delegate_slate_id": null,
    "operations": [{
        "type": "deposit_op_type",
        "data": {
          "amount": 1000000,
          "condition": {
            "asset_id": 0,
            "delegate_slate_id": 9473675977916939725,
            "type": "withdraw_escrow_type",
            "data": {
              "owner": "BTSX111111111111111111113MQ7LD",
              "start_time": "20240917T192947",
              "duration": 3845107543,
              "original_balance": -4376472804032454471
            }
          }
        }
      },{