Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/1765/William_Clarke_MS_1770.abc"

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 ]
filesizedescription
Coll_62769.log 355473 Log file, useful mostly for debugging
Form_62760.log 999 Log file, useful mostly for debugging
Tune-6276-William_Clarke_MS_1770.abc 159 ABC music file with the extracted tune(s)
Tune-6276-William_Clarke_MS_1770.txt 159 Plain-text file with the extracted tune(s)
Tune-6276-get.log 3363 Log file, useful mostly for debugging
Tune-62769-10212_.abc 33 ABC music file with the extracted tune(s)
Tune-62769-10212_.txt 33 Plain-text file with the extracted tune(s)
Tune-62769-get.log 3107 Log file, useful mostly for debugging
These files should be available for 24 hours.