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 Sat 11 Oct 2014 10:25:35 PM JST
gpg:                using RSA key B81245EC56EB38BD
gpg: Can't check signature: No public key
==> BAD/TAMPERED signature detected! <==