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 23 Jan 2018 01:56:46 AM JST
gpg:                using RSA key 0315AA512CBBA832D564940A2B288E66359EAC76
gpg: Can't check signature: No public key