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 Sun 01 Feb 2015 07:57:48 PM JST
gpg:                using RSA key 528494C3698EDC83
gpg: Can't check signature: No public key
==> BAD/TAMPERED signature detected! <==