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 02 Jan 2018 01:54:44 AM JST
gpg:                using RSA key 6D9691C6F29F1025
gpg: Can't check signature: No public key
==> BAD/TAMPERED signature detected! <==