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i have the same problem at org.apache.solr.client.solrj.impl.HttpSolrServer.executeMethod(HttpSolrServer.java:512) at org.apache.solr.client.solrj.impl.HttpSolrServer.request(HttpSolrServer.java:210) at org.apache.solr.client.solrj.impl.HttpSolrServer.request(HttpSolrServer.java:206) at org.apache.solr.client.solrj.request.QueryRequest.process(QueryRequest.java:91) at org.apache.solr.client.solrj.SolrServer.query(SolrServer.java:301) at org.aksw.rdfindex.SOLRIndex.getResourcesWithScores(SOLRIndex.java:82) at org.aksw.autosparql.commons.search.FilteredIndex.getResourcesWithScores(FilteredIndex.java:18) at org.aksw.autosparql.tbsl.algorithm.learning.SimpleEntityDisambiguation.getCandidateEntities(SimpleEntityDisambiguation.java:76) at org.aksw.autosparql.tbsl.algorithm.learning.SimpleEntityDisambiguation.performEntityDisambiguation(SimpleEntityDisambiguation.java:48) at org.aksw.autosparql.tbsl.algorithm.learning.SimpleEntityDisambiguation.performEntityDisambiguation(SimpleEntityDisambiguation.java:38) at org.aksw.autosparql.tbsl.algorithm.learning.TBSL.answerQuestion(TBSL.java:183) at org.aksw.autosparql.tbsl.algorithm.learning.TBSL.answerQuestion(TBSL.java:156) at...