Fix: ---->ftp://ftp.tw.freebsd.org/pub/ports/distfiles/:player \ ---->ftp://ftp.tw.freebsd.org/distfiles/:player \ should be add to MASTER_SITES=<->
over to maintainer
See patch in my earlier report https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=190500 too (which adds some private mirror too)