Ajuda new version

What is this error in new version (1.423)

- IP: 127.0.0.1
- Jogador: Adryan
- Error: 
Traceback (most recent call last):
  File "D:\BlowMice\MainServer.py", line 842, in parseString
    this.parsePackets.parsePacket(packetID, C, CC, packet)
  File "D:\BlowMice\modules\ParsePackets.py", line 67, in parsePacket
    loc_1 = packet.readBoolean() if isAngle else False
  File "D:\BlowMice\modules\ByteArray.py", line 115, in readBoolean
    value = unpack('!?', this.bytes[:1])[0]
error: unpack requires a string argument of length 1

Se for no player moviment, já tem tópico com esse erro.

O player moviment mudou a estrutura.