I'm no programmer but it seems it takes too much threads (too much memory, maybe 'cause your sharing too much files). I would do 2 things:
Send the LW crash report to bugs@limewire.org (or .com?) and share less non useful stuff (stuff that is widespread on the network, keep what is "rare").

En passant, what are christian orientated songs? Limp Biskit?, Eminem?