org.apache.lucene.store.AlreadyClosedException: this IndexReader is closed
	at java.lang.Throwable.<init>(Throwable.java:68)
	at org.apache.lucene.store.AlreadyClosedException.<init>(AlreadyClosedException.java:26)
	at org.apache.lucene.index.IndexReader.ensureOpen(IndexReader.java:163)
	at org.apache.lucene.index.MultiReader.docFreq(MultiReader.java:307)
	at org.apache.lucene.search.IndexSearcher.docFreq(IndexSearcher.java:87)
	at org.apache.lucene.search.Similarity.idf(Similarity.java:457)
	at org.apache.lucene.search.TermQuery$TermWeight.<init>(TermQuery.java:44)
	at org.apache.lucene.search.TermQuery.createWeight(TermQuery.java:146)
	at org.apache.lucene.search.BooleanQuery$BooleanWeight.<init>(BooleanQuery.java:187)
	at org.apache.lucene.search.BooleanQuery.createWeight(BooleanQuery.java:362)
	at org.apache.lucene.search.Query.weight(Query.java:95)
	at org.apache.lucene.search.Hits.<init>(Hits.java:63)
	at org.apache.lucene.search.Searcher.search(Searcher.java:46)
	at org.apache.lucene.search.Searcher.search(Searcher.java:38)
	at org.apache.jackrabbit.core.query.lucene.SearchIndex.executeQuery(SearchIndex.java:691)
	at org.apache.jackrabbit.core.query.lucene.QueryResultImpl.executeQuery(QueryResultImpl.java:242)
	at org.apache.jackrabbit.core.query.lucene.QueryResultImpl.getResults(QueryResultImpl.java:290)
	at org.apache.jackrabbit.core.query.lucene.QueryResultImpl.<init>(QueryResultImpl.java:192)
	at org.apache.jackrabbit.core.query.lucene.QueryImpl.execute(QueryImpl.java:138)
	at org.apache.jackrabbit.core.query.QueryImpl.execute(QueryImpl.java:176)
	at info.magnolia.cms.core.search.QueryImpl.execute(QueryImpl.java:73)