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 Mon 23 Mar 2015 05:16:40 AM JST
gpg:                using RSA key 55E693086B791489
gpg: Can't check signature: No public key
==> BAD/TAMPERED signature detected! <==