array(4 items)
   caller => "TYPO3\CMS\Core\Database\DatabaseConnection::exec_INSERTquery" (60 chars)
   ERROR => "Column 'searchstring' cannot be null" (36 chars)
   lastBuiltQuery => "INSERT INTO index_stat_search (searchstring,searchoptions,feuser_id,cookie,I
      P,hits,tstamp) VALUES (NULL,'a:3:{i:0;a:9:{s:14:\"defaultOperand\";s:1:\"0\"
      ;s:8:\"sections\";s:1:\"0\";s:12:\"freeIndexUid\";N;s:9:\"mediaType\";s:2:\"
      -1\";s:9:\"sortOrder\";s:9:\"rank_flag\";s:11:\"languageUid\";s:1:\"3\";s:8:
      \"sortDesc\";s:1:\"1\";s:10:\"searchType\";s:1:\"1\";s:15:\"numberOfResults\
      ";i:10;}i:1;a:0:{}i:2;a:3:{i:0;d:1532317937610;i:1;d:1532317937611;i:2;d:153
      2317937611;}}','0','f915ec84fd3424a9126115c049b8724f','54.224.111.99','0','1
      532317936')" (543 chars)
   debug_backtrace => "call_user_func#34 // {closure}# // TYPO3\CMS\Frontend\Http\Application->run#
      33 // TYPO3\CMS\Core\Core\Bootstrap->handleRequest#78 // TYPO3\CMS\Frontend\
      Http\RequestHandler->handleRequest#302 // TYPO3\CMS\Frontend\Controller\Typo
      ScriptFrontendController->INTincScript#232 // TYPO3\CMS\Frontend\Controller\
      TypoScriptFrontendController->recursivelyReplaceIntPlaceholdersInContent#347
      7 // TYPO3\CMS\Frontend\Controller\TypoScriptFrontendController->INTincScrip
      t_process#3511 // TYPO3\CMS\Frontend\ContentObject\ContentObjectRenderer->cO
      bjGetSingle#3566 // TYPO3\CMS\Frontend\ContentObject\ContentObjectRenderer->
      render#859 // TYPO3\CMS\Frontend\ContentObject\UserContentObject->render#943
       // TYPO3\CMS\Frontend\ContentObject\ContentObjectRenderer->callUserFunction
      #40 // call_user_func_array#7315 // TYPO3\CMS\Extbase\Core\Bootstrap->run# /
      / TYPO3\CMS\Extbase\Core\Bootstrap->handleRequest#193 // TYPO3\CMS\Extbase\M
      vc\Web\FrontendRequestHandler->handleRequest#206 // TYPO3\CMS\Extbase\Mvc\Di
      spatcher->dispatch#69 // TYPO3\CMS\Extbase\Mvc\Controller\ActionController->
      processRequest#86 // TYPO3\CMS\Extbase\Mvc\Controller\ActionController->call
      ActionMethod#176 // call_user_func_array#283 // TYPO3\CMS\IndexedSearch\Cont
      roller\SearchController->searchAction# // TYPO3\CMS\IndexedSearch\Controller
      \SearchController->writeSearchStat#261 // TYPO3\CMS\Core\Database\DatabaseCo
      nnection->exec_INSERTquery#769 // TYPO3\CMS\Core\Database\DatabaseConnection
      ->debug#223" (1455 chars)

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