error when ./w3af_console

[12wzy12]

I am getting following error can any one help me resolve this error?
ubuntu20.04 python2.7
aaa@ubuntu:~/w3af$ ./w3af_console
/usr/local/lib/python2.7/dist-packages/OpenSSL/_util.py:6: CryptographyDeprecationWarning: Python 2 is no longer supported by the Python core team. Support for it is now deprecated in cryptography, and will be removed in the next release.
from cryptography.hazmat.bindings.openssl.binding import Binding
Error while reading plugin options: "invalid syntax (common.py, line 31)"