Moc will no longer open! "FATAL_ERROR: Can't open log file."

Please help!

I use moc/mocp all the time. Very dependent on it, but it stopped opening last night. When I try to open it from the command line, it hangs after "Trying Alsa..."

Here's the output from mocp -D:

$ mocp -D
Loading plugins from /usr/lib/moc/decoder_plugins...
Loading plugin libaac_decoder...
OK
Loading plugin libflac_decoder...
OK
Loading plugin libmodplug_decoder...
OK
Loading plugin libmp3_decoder...
OK
Loading plugin libmusepack_decoder...
OK
Loading plugin libsidplay2_decoder...
OK
Loading plugin libsndfile_formats_decoder...
OK
Loading plugin libspeex_decoder...
OK
Loading plugin libvorbis_decoder...
OK
Loading plugin libwavpack_decoder...
OK
Running the server...

FATAL_ERROR: Can't open log file.

FATAL_ERROR: Server exited

I don't understand at all why this might have happened since I run moc on a netbook that I've manually crippled—it is unable to access the internet or any other network. I pull things over from my connected computer infrequently when I need to install something new, but I haven't done this in some time and moc had been working just great before last night.

Thanks for any help!