Facing an issue in civicrm contact for a particular contact. As in events that contact has near about 60 events which he/she participated in but when i view that contact it shows the count of events correctly but on click its show " Sorry but we are not able to provide this at the moment.see image 
Dec 23 06:56:09 [debug] $backTrace = #0 /home/nihcmlive/public_html/administrator/components/com_civicrm/civicrm/CRM/Core/Error.php(385): CRM_Core_Error::backtrace("backTrace", TRUE) =>1 /home/nihcmlive/public_html/administrator/components/com_civicrm/civicrm/CRM/Core/DAO.php(1195): CRM_Core_Error::fatal() =>2 /home/nihcmlive/public_html/administrator/components/com_civicrm/civicrm/CRM/Event/BAO/Event.php(1029): CRM_Core_DAO::getFieldValue("CRM_Event_DAO_Event", NULL, "is_monetary") =>3 /home/nihcmlive/public_html/media/civicrm/custom2/extensions/com.servnettech.participantlistemaildisplay/CRM/Event/Selector/Search.php(402): CRM_Event_BAO_Event::isMonetary(NULL) =>4 /home/nihcmlive/public_html/administrator/components/com_civicrm/civicrm/CRM/Core/Selector/Controller.php(420): CRM_Event_Selector_Search->getRows(4, 0, 50, Object(CRM_Utils_Sort), 1, NULL) =>5 /home/nihcmlive/public_html/administrator/components/com_civicrm/civicrm/CRM/Core/Selector/Controller.php(341): CRM_Core_Selector_Controller->getRows(Object(CRM_Core_Selector_Controller)) =>6 /home/nihcmlive/public_html/administrator/components/com_civicrm/civicrm/CRM/Event/Form/Search.php(373): CRM_Core_Selector_Controller->run() =>7 /home/nihcmlive/public_html/administrator/components/com_civicrm/civicrm/CRM/Event/Form/Search.php(409): CRM_Event_Form_Search->submit((Array:0)) =>8 /home/nihcmlive/public_html/administrator/components/com_civicrm/civicrm/CRM/Event/Form/Search.php(109): CRM_Event_Form_Search->postProcess() =>9 /home/nihcmlive/public_html/administrator/components/com_civicrm/civicrm/CRM/Core/Form.php(590): CRM_Event_Form_Search->preProcess() =>10 /home/nihcmlive/public_html/administrator/components/com_civicrm/civicrm/CRM/Core/QuickForm/Action/Display.php(92): CRM_Core_Form->buildForm() =>11 /home/nihcmlive/public_html/administrator/components/com_civicrm/civicrm/packages/HTML/QuickForm/Controller.php(203): CRM_Core_QuickForm_Action_Display->perform(Object(CRM_Event_Form_Search), "display") =>12 /home/nihcmlive/public_html/administrator/components/com_civicrm/civicrm/packages/HTML/QuickForm/Page.php(103): HTML_QuickForm_Controller->handle(Object(CRM_Event_Form_Search), "display") =>13 /home/nihcmlive/public_html/administrator/components/com_civicrm/civicrm/CRM/Core/Controller.php(351): HTML_QuickForm_Page->handle("display") =>14 /home/nihcmlive/public_html/administrator/components/com_civicrm/civicrm/CRM/Event/Page/Tab.php(54): CRM_Core_Controller->run() =>15 /home/nihcmlive/public_html/administrator/components/com_civicrm/civicrm/CRM/Event/Page/Tab.php(190): CRM_Event_Page_Tab->browse() =>16 /home/nihcmlive/public_html/administrator/components/com_civicrm/civicrm/CRM/Core/Invoke.php(290): CRM_Event_Page_Tab->run((Array:4), NULL) =>17 /home/nihcmlive/public_html/administrator/components/com_civicrm/civicrm/CRM/Core/Invoke.php(84): CRM_Core_Invoke::runItem((Array:12)) =>18 /home/nihcmlive/public_html/administrator/components/com_civicrm/civicrm/CRM/Core/Invoke.php(52): CRM_Core_Invoke::_invoke((Array:4)) =>19 /home/nihcmlive/public_html/administrator/components/com_civicrm/civicrm.php(121): CRM_Core_Invoke::invoke((Array:4)) =>20 /home/nihcmlive/public_html/administrator/components/com_civicrm/civicrm.php(40): civicrm_invoke() =>21 /home/nihcmlive/public_html/libraries/src/Component/ComponentHelper.php(402): require_once("/home/nihcmlive/public_html/administrator/components/com_civicrm/civicrm.php") =>22 /home/nihcmlive/public_html/libraries/src/Component/ComponentHelper.php(377): Joomla\CMS\Component\ComponentHelper::executeComponent("/home/nihcmlive/public_html/administrator/components/com_civicrm/civicrm.php") =>23 /home/nihcmlive/public_html/libraries/src/Application/AdministratorApplication.php(101): Joomla\CMS\Component\ComponentHelper::renderComponent("com_civicrm") =>24 /home/nihcmlive/public_html/libraries/src/Application/AdministratorApplication.php(159): Joomla\CMS\Application\AdministratorApplication->dispatch() =>25 /home/nihcmlive/public_html/libraries/src/Application/CMSApplication.php(196): Joomla\CMS\Application\AdministratorApplication->doExecute() =>26 /home/nihcmlive/public_html/administrator/index.php(51): Joomla\CMS\Application\CMSApplication->execute() =>27 {main} "
