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 06 Sep 2008 07:37:40 AM JST
gpg:                using RSA key CE3E5B6EF5D53DE9
gpg: Can't check signature: No public key
==> BAD/TAMPERED signature detected! <==