Problem with bip38 (AssertionError) "Flagbyte has to be 0xc0" #181

Hello!
Please help. I am creating a bip38 wallet on the site bitaddress org.
For example:
Encrypted Private Key:
6PnWr5jA55QRpzjBzNF2wyPrpLhuihQu7WTgpzDgkyN8io3gXgX5cmfteq
Passphrase: 123123

Use this python code with graphenelib for decrypt:

from graphenebase.account import PrivateKey
from graphenebase.bip38 import encrypt, decrypt
dec = format(decrypt("6PnWr5jA55QRpzjBzNF2wyPrpLhuihQu7WTgpzDgkyN8io3gXgX5cmfteq", "123123"), "wif")
print(dec)

And get the error:
\Python\Python39\lib\site-packages\graphenebase\bip38.py", line 99, in decrypt
assert flagbyte == b"\xc0", "Flagbyte has to be 0xc0"
AssertionError: Flagbyte has to be 0xc0
Please help, how to fix.