Errors

valid_signature

Old SIGNATURE detected. Please inform the module author to regenerate SIGNATURE using Module::Signature version 0.82 or newer.
gpg: Signature made Fri 19 Dec 2014 07:38:06 AM JST
gpg:                using DSA key 31F9562596406EA0
gpg: Can't check signature: No public key
==> BAD/TAMPERED signature detected! <==