Raised exception while starting the application. Fix the error and restart.

Message
java.nio.file.AccessDeniedException: C:\home\site\wwwroot\geonetwork_data_dir_ROOT\index\taxonomy\write.lock
Handler
org.fao.geonet.Geonetwork
Exception
java.lang.RuntimeException: java.nio.file.AccessDeniedException: C:\home\site\wwwroot\geonetwork_data_dir_ROOT\index\taxonomy\write.lock
Stack
java.lang.RuntimeException: java.nio.file.AccessDeniedException: C:\home\site\wwwroot\geonetwork_data_dir_ROOT\index\taxonomy\write.lock
	at org.fao.geonet.kernel.search.index.LuceneIndexLanguageTracker.lazyInit(LuceneIndexLanguageTracker.java:124)
	at org.fao.geonet.kernel.search.index.LuceneIndexLanguageTracker.acquire(LuceneIndexLanguageTracker.java:187)
	at org.fao.geonet.kernel.search.SearchManager.getIndexReader(SearchManager.java:1203)
	at org.fao.geonet.kernel.search.SearchManager.getNewIndexReader(SearchManager.java:1208)
	at org.fao.geonet.kernel.search.SearchManager.getDocsChangeDate(SearchManager.java:891)
	at org.fao.geonet.kernel.datamanager.base.BaseMetadataManager.init(BaseMetadataManager.java:242)
	at org.fao.geonet.kernel.datamanager.draft.DraftMetadataManager.init(DraftMetadataManager.java:63)
	at org.fao.geonet.kernel.DataManager.init(DataManager.java:117)
	at org.fao.geonet.Geonetwork.start(Geonetwork.java:340)
	at jeeves.server.JeevesEngine.initAppHandler(JeevesEngine.java:447)
	at jeeves.server.JeevesEngine.init(JeevesEngine.java:190)
	at jeeves.server.sources.http.JeevesServlet.init(JeevesServlet.java:82)
	at javax.servlet.GenericServlet.init(GenericServlet.java:158)
	at org.apache.catalina.core.StandardWrapper.initServlet(StandardWrapper.java:1142)
	at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1089)
	at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:983)
	at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:4956)
	at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5270)
	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
	at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:754)
	at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:730)
	at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:744)
	at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:1135)
	at org.apache.catalina.startup.HostConfig$DeployDirectory.run(HostConfig.java:1869)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:750)
Caused by: java.nio.file.AccessDeniedException: C:\home\site\wwwroot\geonetwork_data_dir_ROOT\index\taxonomy\write.lock
	at sun.nio.fs.WindowsException.translateToIOException(WindowsException.java:83)
	at sun.nio.fs.WindowsException.rethrowAsIOException(WindowsException.java:97)
	at sun.nio.fs.WindowsException.rethrowAsIOException(WindowsException.java:102)
	at sun.nio.fs.WindowsFileSystemProvider.newFileChannel(WindowsFileSystemProvider.java:115)
	at java.nio.channels.FileChannel.open(FileChannel.java:287)
	at java.nio.channels.FileChannel.open(FileChannel.java:335)
	at org.apache.lucene.store.NativeFSLock.obtain(NativeFSLockFactory.java:167)
	at org.apache.lucene.store.Lock.obtain(Lock.java:77)
	at org.apache.lucene.index.IndexWriter.<init>(IndexWriter.java:724)
	at org.apache.lucene.facet.taxonomy.directory.DirectoryTaxonomyWriter.openIndexWriter(DirectoryTaxonomyWriter.java:265)
	at org.apache.lucene.facet.taxonomy.directory.DirectoryTaxonomyWriter.<init>(DirectoryTaxonomyWriter.java:192)
	at org.apache.lucene.facet.taxonomy.directory.DirectoryTaxonomyWriter.<init>(DirectoryTaxonomyWriter.java:315)
	at org.apache.lucene.facet.taxonomy.directory.DirectoryTaxonomyWriter.<init>(DirectoryTaxonomyWriter.java:332)
	at org.fao.geonet.kernel.search.index.TaxonomyIndexTracker.init(TaxonomyIndexTracker.java:69)
	at org.fao.geonet.kernel.search.index.TaxonomyIndexTracker.<init>(TaxonomyIndexTracker.java:63)
	at org.fao.geonet.kernel.search.index.LuceneIndexLanguageTracker.lazyInit(LuceneIndexLanguageTracker.java:115)
	... 28 more