Sign Data Error

[小宝软件]

functionName
web3.eth.crypto.sign

Prikey 5b9cd58f644091919ea9eb81d03f771c2e5c15a2ad956ab5e51ac74d533232a8
besignedData "You are better than you know!"

signature 0xB080B3B050F8D0854DA7AB3971455B0D6641EB579784B5BF75D6779931DEC08A miss00 AEB67008D1015CB64DC804EFD90789B9E595FB70A44FCA1084616B7F0CA26D1C

The Right Signature is

              0xb080b3b050f8d0854da7ab3971455b0d6641eb579784b5bf75d6779931dec08a    00   aeb67008d1015cb64dc804efd90789b9e595fb70a44fca1084616b7f0ca26d1c

This Problem sotimes mis 00 in the middle sometimes in the first