Traceback (most recent call last):


 "calibre_plugins.dedrm.ignobleepub", line 280, in decryptBook


 "calibre_plugins.dedrm.ignobleepub", line 211, in __init__


 "calibre_plugins.dedrm.ignobleepub", line 182, in __init__


 "site-packages\Crypto\Cipher\AES.py", line 95, in new


 "site-packages\Crypto\Cipher\AES.py", line 59, in __init__


 "site-packages\Crypto\Cipher\blockalgo.py", line 141, in __init__
ValueError: Key cannot be the null string

Traceback (most recent call last):


 "/git/indomita-realtime/venv/lib/python3.6/site-packages/engineio/server.py", line 394, in handle_request

socket.handle_post_request(environ)


 "/git/indomita-realtime/venv/lib/python3.6/site-packages/engineio/socket.py", line 123, in handle_post_request

p = payload.Payload(encoded_payload=body)


 "/git/indomita-realtime/venv/lib/python3.6/site-packages/engineio/payload.py", line 15, in __init__

self.decode(encoded_payload)


 "/git/indomita-realtime/venv/lib/python3.6/site-packages/engineio/payload.py", line 76, in decode

raise ValueError('Too many packets in payload')
ValueError: Too many packets in payload
