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 20 Jun 2014 04:43:45 AM JST
gpg:                using DSA key CB32A10788C3A5A5
gpg: Can't check signature: No public key
==> BAD/TAMPERED signature detected! <==