Hi All,
I had the community edition working fine for a few months. All of a sudden it crashed and now i am unable to restart it. I am using the spoon.sh script to start up spoon.
Here is the error message:

2014-07-07 11:19:33.422 java[5378:230b] [Java CocoaComponent compatibility mode]: Enabled
2014-07-07 11:19:33.453 java[5378:230b] [Java CocoaComponent compatibility mode]: Setting timeout for SWT to 0.100000
2014/07/07 11:19:38 - General - ERROR (version 5.1.0.0, build 1 from 2014-06-19_19-02-57 by buildguy) : Error starting Spoon shell
2014/07/07 11:19:38 - General - ERROR (version 5.1.0.0, build 1 from 2014-06-19_19-02-57 by buildguy) : java.lang.RuntimeException: Unable to create the database cache:
2014/07/07 11:19:38 - General -
2014/07/07 11:19:38 - General - Couldn't read the database cache
2014/07/07 11:19:38 - General - org.pentaho.di.core.exception.KettleFileException:
2014/07/07 11:19:38 - General -
2014/07/07 11:19:38 - General - : Unable to read row metadata from input stream
2014/07/07 11:19:38 - General -
2014/07/07 11:19:38 - General - Unable to locate value meta plugin of type (id) 131072
2014/07/07 11:19:38 - General -
2014/07/07 11:19:38 - General -
2014/07/07 11:19:38 - General -
2014/07/07 11:19:38 - General - Unable to locate value meta plugin of type (id) 131072
2014/07/07 11:19:38 - General -
2014/07/07 11:19:38 - General -
2014/07/07 11:19:38 - General -
2014/07/07 11:19:38 - General - org.pentaho.di.core.exception.KettleFileException:
2014/07/07 11:19:38 - General -
2014/07/07 11:19:38 - General - : Unable to read row metadata from input stream
2014/07/07 11:19:38 - General -
2014/07/07 11:19:38 - General - Unable to locate value meta plugin of type (id) 131072
2014/07/07 11:19:38 - General -
2014/07/07 11:19:38 - General -
2014/07/07 11:19:38 - General -
2014/07/07 11:19:38 - General - Unable to locate value meta plugin of type (id) 131072
2014/07/07 11:19:38 - General -
2014/07/07 11:19:38 - General -
2014/07/07 11:19:38 - General -
2014/07/07 11:19:38 - General - at org.pentaho.di.core.DBCache.getInstance(DBCache.java:247)
2014/07/07 11:19:38 - General - at org.pentaho.di.ui.spoon.Spoon.loadSettings(Spoon.java:7066)
2014/07/07 11:19:38 - General - at org.pentaho.di.ui.spoon.Spoon.init(Spoon.java:763)
2014/07/07 11:19:38 - General - at org.pentaho.di.ui.spoon.Spoon.createContents(Spoon.java:9098)
2014/07/07 11:19:38 - General - at org.eclipse.jface.window.Window.create(Window.java:426)
2014/07/07 11:19:38 - General - at org.eclipse.jface.window.Window.open(Window.java:785)
2014/07/07 11:19:38 - General - at org.pentaho.di.ui.spoon.Spoon.start(Spoon.java:9129)
2014/07/07 11:19:38 - General - at org.pentaho.di.ui.spoon.Spoon.main(Spoon.java:638)
2014/07/07 11:19:38 - General - at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
2014/07/07 11:19:38 - General - at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
2014/07/07 11:19:38 - General - at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
2014/07/07 11:19:38 - General - at java.lang.reflect.Method.invoke(Method.java:597)
2014/07/07 11:19:38 - General - at org.pentaho.commons.launcher.Launcher.main(Launcher.java:151)
stopping

Any suggestions?

Thanks,
Karthick