Error decrypting the database

[husenko]

Database from device Samsung Galaxy S4 I9500.
Whatsapp version 2.11.195
Active Python 2.6.7
M2Crypto 0.21.1
Error details:

Traceback (most recent call last):
File "C:\Whatsapp\pwncrypt5.py", line 33, in
decrypt(sys.argv[1],sys.argv[2])
File "C:\Whatsapp\pwncrypt5.py", line 27, in decrypt
sys.stdout.write(cipher.final())
File "C:\Python27\lib\site-packages\M2Crypto\EVP.py", line 128, in final
return m2.cipher_final(self.ctx)
M2Crypto.EVP.EVPError: bad decrypt