An error occurred on LanguageTool 1.0.0

Hello,
When I was using a writer document the LibereOffice crashed suddenly. Now I can’t open any document and getting errors again and LibreOffice quits. How can I remove the following series of errors? Can I get the solution to resolve this issue? Help me to fix this issue.

Thanks in advance.

Error:

An error occurred on LanguageTool 1.0.0
java.lang.RuntimeException: Failed to load rules: Loading rules failed: Duplicate class definition
de.danielnaber.languagetool.rules.CommaWhiteSpaceRule, found in

C:Program FilesLibreOffice3program..shareextensionsLanguageToolLanguageTool.uno.jarStacktrace:

De.danielnabber.languagetool.JlanguageTool.getAllBuiltinRules(JlanguageTool.java:245)

De.danielnaber.languagetool.JlanguageTool.<init>(JlanguageTool.java:155)

De.danielnaber.languagetool.openoffice.Main.doGrammarCheckingternal(Main.java:263)

De.danielnaber.languagetool.openoffice.Main.doProofreading(Main.java:242)

OS:Windows XP on x86, Java version 16.3-b01 from Sun Microsystem Inc.

Error 2:

An error has occurred in LanguageTool 1.0.0:

Java.lang.NullPointerException

Stacktrace:

De.danielnaber.languagetool.openoffice.Main.doGrammarCheckingInternal(Main.java:274)

De.danielnaber.languagetool.openoffice.Main.doProofreading(Main.java:242)

OS:Windows XP on x86,Java version 16.3-b01 from Sun Microsystem Inc.