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 16 May 2018 10:00:13 PM JST
gpg:                using DSA key 5524A8FFE3EB3ACF85B336E8CEBF81286A2A7D39
gpg: Can't check signature: No public key