Something went wrong with FrostWire.
Maybe you're using the wrong version of Java?
(FrostWire is tested against and works best with with Sun's JRE, Java 1.4+)
The version of Java in your PATH is:
java version "1.6.0_18"
OpenJDK Runtime Environment (IcedTea6 1.8.3) (6b18-1.8.3-2)
OpenJDK Client VM (build 16.0-b13, mixed mode, sharing)