=> Bootstrap dependency digest>=20211023: found digest-20220214
=> Fetching otp_doc_man_27.3.tar.gz
ftp: Error retrieving file `404 Not Found'
fetch: Unable to fetch expected file otp_doc_man_27.3.tar.gz
checksum: No checksum recorded for erlang/otp_doc_man_27.3.tar.gz
fetch: Checksum of the file erlang/otp_doc_man_27.3.tar.gz.7858.part doesn't match.
ftp: Error retrieving file `404 Not Found'
fetch: Unable to fetch expected file otp_doc_man_27.3.tar.gz
*** Error code 1

Stop.
make: stopped making "checksum" in /usr/pkgsrc/lang/erlang-man