crash

Argh! It crashed.  I tried the renaming .metadata and letting it restart.
Do I have to start all over?  Do all of the customization need to be
redone?  The error happened when attempting to open a CL member.  It said
something to the effect that it hadn't yet saved to the host.  But it
wasn't open (it was open earlier.)  So I exited and restarted eclipse and
then it said it couldn't use the workspace.  Please tell me there is a way
to recover without losing everything!!

Here's the .log file:

java.fullversion=J2RE 1.3.1 IBM J9 build 20030702 (JIT enabled)
BootLoader constants: OS=win32, ARCH=x86, WS=win32, NL=en_US
Command-line arguments: -os win32 -ws win32 -arch x86 Files\IBM\WebSphere
Studio\Site Developer\v5.1\.\eclipse\eclipse.exe -data C:\Documents and
Settings\1471135\My Documents\IBM\wdsc\workspace -feature com.ibm.wdsclient
-install file:C:/Program Files/IBM/WebSphere Studio/Site
Developer/v5.1/eclipse/
!ENTRY org.eclipse.ui 4 4 Feb 12, 2004 16:05:51.524
!MESSAGE Unable to find element factory:
org.eclipse.ui.internal.model.ResourceFactory
!ENTRY org.eclipse.ui 4 4 Feb 12, 2004 16:05:51.524
!MESSAGE Unable to restore pagee - cannot instantiate input factory:
org.eclipse.ui.internal.model.ResourceFactory
!ENTRY org.eclipse.ui 4 4 Feb 12, 2004 16:05:51.574
!MESSAGE Unable to create default perspective - constructor failed.
!ENTRY org.eclipse.ui.workbench 4 2 Feb 12, 2004 16:05:51.574
!MESSAGE Problems occurred when invoking code from plug-in:
"org.eclipse.ui.workbench".
!STACK 0
java.lang.NullPointerException
      at java.lang.Throwable.<init>(Throwable.java)
      at java.lang.Throwable.<init>(Throwable.java:68)
      at
java.lang.NullPointerException.<init>(NullPointerException.java:63)
      at
org.eclipse.ui.internal.WorkbenchWindow.restoreState(WorkbenchWindow.java:1364)
      at
org.eclipse.ui.internal.Workbench.restoreState(Workbench.java:1263)
      at org.eclipse.ui.internal.Workbench.access$10(Workbench.java:1223)
      at org.eclipse.ui.internal.Workbench$12.run(Workbench.java:1141)
      at
org.eclipse.core.internal.runtime.InternalPlatform.run(InternalPlatform.java:1006)
      at org.eclipse.core.runtime.Platform.run(Platform.java:413)
      at
org.eclipse.ui.internal.Workbench.openPreviousWorkbenchState(Workbench.java:1093)
      at org.eclipse.ui.internal.Workbench.init(Workbench.java:870)
      at org.eclipse.ui.internal.Workbench.run(Workbench.java:1373)
      at
org.eclipse.core.internal.boot.InternalBootLoader.run(InternalBootLoader.java:858)
      at org.eclipse.core.boot.BootLoader.run(BootLoader.java:461)
      at
java.lang.reflect.AccessibleObject.invokeL(AccessibleObject.java:207)
      at java.lang.reflect.Method.invoke(Method.java:271)
      at org.eclipse.core.launcher.Main.basicRun(Main.java:291)
      at org.eclipse.core.launcher.Main.run(Main.java:747)
      at org.eclipse.core.launcher.Main.main(Main.java:583)