Solr error

gistfile1.txt

4839830479 ERROR (qtp1729199940-9657) [c:7d321440-fc59-4d20-acb1-9b7a07b8b583 s:shard1 r:core_node6 x:7d321440-fc59-4d20-acb1-9b7a07b8b583_shard1_replica4] o.a.s.h.RequestHandlerBase org.apache.solr.common.SolrException: Exception writing document id 34c6b077-cc77-4f29-bda6-df70b4919fe9 to the index; possible analysis error.
	at org.apache.solr.update.DirectUpdateHandler2.addDoc(DirectUpdateHandler2.java:181)
	at org.apache.solr.update.processor.RunUpdateProcessor.processAdd(RunUpdateProcessorFactory.java:67)
	at org.apache.solr.update.processor.UpdateRequestProcessor.processAdd(UpdateRequestProcessor.java:48)
	at org.apache.solr.update.processor.DistributedUpdateProcessor.doLocalAdd(DistributedUpdateProcessor.java:939)
	at org.apache.solr.update.processor.DistributedUpdateProcessor.versionAdd(DistributedUpdateProcessor.java:1094)
	at org.apache.solr.update.processor.DistributedUpdateProcessor.processAdd(DistributedUpdateProcessor.java:720)
	at org.apache.solr.update.processor.LogUpdateProcessorFactory$LogUpdateProcessor.processAdd(LogUpdateProcessorFactory.java:103)
	at org.apache.solr.handler.loader.XMLLoader.processUpdate(XMLLoader.java:250)
	at org.apache.solr.handler.loader.XMLLoader.load(XMLLoader.java:177)
	at org.apache.solr.handler.UpdateRequestHandler$1.load(UpdateRequestHandler.java:97)
	at org.apache.solr.handler.ContentStreamHandlerBase.handleRequestBody(ContentStreamHandlerBase.java:68)
	at org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:154)
	at org.apache.solr.core.SolrCore.execute(SolrCore.java:2089)
	at org.apache.solr.servlet.HttpSolrCall.execute(HttpSolrCall.java:652)
	at org.apache.solr.servlet.HttpSolrCall.call(HttpSolrCall.java:459)
	at org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:257)
	at org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:208)
	at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1668)
	at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:581)
	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143)
	at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:548)
	at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:226)
	at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1160)
	at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:511)
	at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:185)
	at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1092)
	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
	at org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:213)
	at org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:119)
	at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:134)
	at org.eclipse.jetty.server.Server.handle(Server.java:518)
	at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:308)
	at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:244)
	at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:273)
	at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:95)
	at org.eclipse.jetty.io.SelectChannelEndPoint$2.run(SelectChannelEndPoint.java:93)
	at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.produceAndRun(ExecuteProduceConsume.java:246)
	at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.run(ExecuteProduceConsume.java:156)
	at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:654)
	at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:572)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.apache.lucene.store.AlreadyClosedException: this IndexWriter is closed
	at org.apache.lucene.index.IndexWriter.ensureOpen(IndexWriter.java:740)
	at org.apache.lucene.index.IndexWriter.ensureOpen(IndexWriter.java:754)
	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1558)
	at org.apache.solr.update.DirectUpdateHandler2.doNormalUpdate(DirectUpdateHandler2.java:282)
	at org.apache.solr.update.DirectUpdateHandler2.addDoc0(DirectUpdateHandler2.java:214)
	at org.apache.solr.update.DirectUpdateHandler2.addDoc(DirectUpdateHandler2.java:169)
	... 40 more