Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/DftY/proto.abc/proto"

Error exit status 256; here are some files to check:
[get.cgi V=1/1 B=0 scale=0.55 512x512 ]
filesizedescription
Form_79787.log 889 Log file, useful mostly for debugging
Tune-79787-get.log 3057 Log file, useful mostly for debugging
Tune-79787-proto.abc 148 ABC music file with the extracted tune(s)
Tune-79787-proto.txt 148 Plain-text file with the extracted tune(s)
These files should be available for 24 hours.