For whatever it's worth, the SHA sum is correct. The killed message is uninformative, looks like what happens when I'm OOM (but I have 64GB RAM of which only 24 is used for anything at the moment).
$ sha256sum < llamafile-server-0.1-llava-v1.5-7b-q4
a138c5db9cff3b8905dd6e579c2ab6c098048526b53ae5ab433ff1d1edb9de24 -
$ ./llamafile-server-0.1-llava-v1.5-7b-q4
Killed: 9