Not able to install enhanced search...

Followed the instructions but kept getting the following error messages when I try to rebuild search index.

An exception occurred: No response returned from Elasticsearch. Is it running? in /home/meridian/public_html/staffportal/library/XenES/Search/SourceHandler/ElasticSearch.php on line 777

  1. XenES_Search_SourceHandler_ElasticSearch->_assertIndexSuccessful() in XenES/Search/SourceHandler/ElasticSearch.php at line 67
  2. XenES_Search_SourceHandler_ElasticSearch->finalizeRebuildSet() in XenForo/Search/Indexer.php at line 125
  3. XenForo_Search_Indexer->finalizeRebuildSet() in XenForo/Deferred/SearchIndex.php at line 74
  4. XenForo_Deferred_SearchIndex->execute() in XenForo/Model/Deferred.php at line 252
  5. XenForo_Model_Deferred->runDeferred() in XenForo/Model/Deferred.php at line 378
  6. XenForo_Model_Deferred->_runInternal() in XenForo/Model/Deferred.php at line 331
  7. XenForo_Model_Deferred->run() in XenForo/ViewRenderer/Abstract.php at line 352
  8. XenForo_ViewRenderer_Abstract::hasManualDeferredToRun() in XenForo/ViewRenderer/HtmlAdmin.php at line 130
  9. XenForo_ViewRenderer_HtmlAdmin->renderContainer() in XenForo/FrontController.php at line 614
  10. XenForo_FrontController->renderView() in XenForo/FrontController.php at line 158
  11. XenForo_FrontController->run() in /home/meridian/public_html/staffportal/admin.php at line 13

I approached the support of my domain host, but got this reply from them:

"From our check Elasticsearch is developed in Java and unfortunately your server would not be able to support the application."

Unfortunately it's not compatible for my server?