Can you remember if you installed any new programs around the time that LW stopped working?

You could try the Java fix in this thread (from another forum), even though the OP's problem with LW shutting down isn't quite the same as yours.
LW 14.5.1 (and 14.4.12) keeps shutting down

Or you could try downloading the latest LW Beta version if you like & see whether that's any better. You can download the Beta from the usual download page (click on the 'get basic' button & answer the question about copyright infringement...once you get to the download page for various platforms you'll see the option to download the Beta).
Lime Wire » Download LimeWire

I'm not sure what's going wrong for you...one of the earlier LW versions had a bug which caused LW to freeze at loading digital audio access protocol but I think that was 4.14.7. If nothing works & you don't want to roll back to the LW version which worked for you, try posting at the other forum that I linked to earlier. Maybe a dev can help you over there.

If you do want to roll back to 4.10, try this site
Old Version of Limewire Download