From what I can tell, it's complaining that it can't read your .fomus file--I've fixed the code so it won't enter the debugger if that happens (and choke on it when it compiles)--I'll release the update in a few days (I have to test a few other changes I've made first).
More text file examples will get posted in the docs shortly, and I'll put a better .fomus init file example up... I'm adding some options to control the output: -v view immediately (invoke the pd or pdf viewer after compiling cmn or lilypond) -l output a lilypond score file -c output a cmn file -x output musicxml -f output musicxml w/ finale kludges -s output musicxml w/ sibelius kludges (I have to check if Sibelius has fixed anything in their xml import--last time I tried it it was hopeless) -m output a fomus file (won't accomplish all that much--it'll be nearly the same as your input file) -o base output filename -q set the "quality" value (alters computation time) Usage: fomus [-lxfscmvo] filename Also, you should be able to put "\" characters at the ends of lines you want to be read as one (seemed necessary as I was generating examples). -David