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 Thu 22 May 2014 07:39:09 AM JST
gpg:                using RSA key 9CDA8911AF0DB8C8
gpg: Can't check signature: No public key
==> BAD/TAMPERED signature detected! <==