inatalation problem

Can you help me, please
Error on attached file “demo-images-1”:
Solr HTTP error: OK (500) {“error”:{“msg”:”Error loading class ‘solr.extraction.ExtractingRequestHandler'”,”trace”:”org.apache.solr.common.SolrException: Error loading class ‘solr.extraction.ExtractingRequestHandler’\n\tat org.apache.solr.core.SolrResourceLoader.findClass(SolrResourceLoader.java:491)\n\tat org.apache.solr.core.SolrResourceLoader.findClass(SolrResourceLoader.java:422)\n\tat org.apache.solr.core.SolrCore.createInstance(SolrCore.java:566)\n\tat org.apache.solr.core.PluginBag$LazyPluginHolder.createInst(PluginBag.java:359)\n\tat org.apache.solr.core.PluginBag$LazyPluginHolder.get(PluginBag.java:344)\n\tat org.apache.solr.core.PluginBag.get(PluginBag.java:144)\n\tat org.apache.solr.handler.RequestHandlerBase.getRequestHandler(RequestHandlerBase.java:219)\n\tat org.apache.solr.core.SolrCore.getRequestHandler(SolrCore.java:1343)\n\tat org.apache.solr.servlet.HttpSolrCall.extractHandlerFromURLPath(HttpSolrCall.java:323)\n\tat org.apache.solr.servlet.HttpSolrCall.init(HttpSolrCall.java:293)\n\tat org.apache.solr.servlet.HttpSolrCall.call(HttpSolrCall.java:412)\n\tat org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:227)\n\tat org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:196)\n\tat org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1652)\n\tat org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:585)\n\tat org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143)\n\tat org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:577)\n\tat org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:223)\n\tat org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1127)\n\tat org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:515)\n\tat org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:185)\n\tat org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1061)\n\tat org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)\n\tat org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:215)\n\tat org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:110)\n\tat org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:97)\n\tat org.eclipse.jetty.server.Server.handle(Server.java:497)\n\tat org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:310)\n\tat org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:257)\n\tat org.eclipse.jetty.io.AbstractConnection$2.run(AbstractConnection.java:540)\n\tat org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:635)\n\tat org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:555)\n\tat java.lang.Thread.run(Thread.java:745)\nCaused by: java.lang.ClassNotFoundException: solr.extraction.ExtractingRequestHandler\n\tat java.net.URLClassLoader.findClass(URLClassLoader.java:381)\n\tat java.lang.ClassLoader.loadClass(ClassLoader.java:424)\n\tat java.net.FactoryURLClassLoader.loadClass(URLClassLoader.java:810)\n\tat java.lang.ClassLoader.loadClass(ClassLoader.java:357)\n\tat java.lang.Class.forName0(Native Method)\n\tat java.lang.Class.forName(Class.java:348)\n\tat org.apache.solr.core.SolrResourceLoader.findClass(SolrResourceLoader.java:475)\n\t… 32 more\n”,”code”:500}}

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