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 24 Jul 2015 05:23:25 PM JST
gpg:                using RSA key 7C16472054EB696A
gpg: Can't check signature: No public key
==> BAD/TAMPERED signature detected! <==