Lo siento, no hablo Espaņo.
Are you running OSX in 32 or 64 bit?
You can try control-clicking / right-clicking the FrostWire program and get Information and check the option for Open in 32-bit mode. Example using LimeWire:
Sample image
Or re-install FrostWire 4.
http://www.gnutellaforums.com/frostw...a-network.html
I am still using Snow Leopard 10.6, but FrostWire should still work with Mountain Lion 10.8.