Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/cache/Tune-4690-jig.abc/tmp"

Error exit status 256; here are some files to check:
[get.cgi V=1/1 B=0 scale=0.55 512x512 ]
filesizedescription
Coll_27370.log 331926 Log file, useful mostly for debugging
Coll_27376.log 270810 Log file, useful mostly for debugging
Coll_27377.log 1183431 Log file, useful mostly for debugging
Form_2737.log 174 Log file, useful mostly for debugging
Form_27370.log 1072 Log file, useful mostly for debugging
Form_27374.log 859 Log file, useful mostly for debugging
Form_27376.log 905 Log file, useful mostly for debugging
Tune-2737-get.log 8498 Log file, useful mostly for debugging
Tune-2737-tmp.abc 155 ABC music file with the extracted tune(s)
Tune-2737-tmp.txt 155 Plain-text file with the extracted tune(s)
Tune-27370-get.log 9719 Log file, useful mostly for debugging
Tune-27371-get.log 8830 Log file, useful mostly for debugging
Tune-27373-get.log 3488 Log file, useful mostly for debugging
Tune-27374-get.log 4956 Log file, useful mostly for debugging
Tune-27378-get.log 4643 Log file, useful mostly for debugging
These files should be available for 24 hours.