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 31 Jan 2015 05:40:37 AM JST
gpg:                using RSA key 528494C3698EDC83
gpg: Can't check signature: No public key
==> BAD/TAMPERED signature detected! <==