Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/Book28/Gow-CR-abc1.abc"

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 ]
filesizedescription
Coll_44718.log 148653 Log file, useful mostly for debugging
Tune-4471-Gow-CR-abc1.abc 150 ABC music file with the extracted tune(s)
Tune-4471-Gow-CR-abc1.txt 150 Plain-text file with the extracted tune(s)
Tune-4471-get.log 3171 Log file, useful mostly for debugging
Tune-44710-get.log 5487 Log file, useful mostly for debugging
Tune-44712-AMHSI-abc2.abc 145 ABC music file with the extracted tune(s)
Tune-44712-AMHSI-abc2.txt 145 Plain-text file with the extracted tune(s)
Tune-44712-get.log 3174 Log file, useful mostly for debugging
Tune-44717-get.log 6333 Log file, useful mostly for debugging
Tune-44718-get.log 1387 Log file, useful mostly for debugging
These files should be available for 24 hours.