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 Sun 29 Jul 2018 10:47:39 PM JST
gpg:                using DSA key BD14EDB524E0186D761BEE4BF04CAAA8704E5477
gpg: Can't check signature: No public key