Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/cache/Gow-CR-abc2.abc"

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 ]
filesizedescription
Tune-2599-Gow-CR-abc2.abc 149 ABC music file with the extracted tune(s)
Tune-2599-Gow-CR-abc2.txt 149 Plain-text file with the extracted tune(s)
Tune-2599-get.log 8718 Log file, useful mostly for debugging
Tune-25990-get.log 1408 Log file, useful mostly for debugging
Tune-25991-get.log 15247 Log file, useful mostly for debugging
Tune-25992-get.log 4217 Log file, useful mostly for debugging
Tune-25994-get.log 29561 Log file, useful mostly for debugging
Tune-25996-get.log 8761 Log file, useful mostly for debugging
Tune-25997-get.log 5108 Log file, useful mostly for debugging
These files should be available for 24 hours.