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 Wed 20 Apr 2016 11:40:59 PM JST
gpg:                using RSA key 97BE5D729A22E4E5
gpg: Can't check signature: No public key
==> BAD/TAMPERED signature detected! <==