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 Tue 21 Nov 2006 07:07:19 AM JST
gpg:                using DSA key 122F5DF7108E4046
gpg: Can't check signature: No public key
==> BAD/TAMPERED signature detected! <==