Search Button Not Working

Please help to solve this when I click after search

Fatal error : Uncaught Error: Call to a member function getGalleyLabel() on null in /home/u216976409/domains/srikandikreatif.my.id/public_html/ojs/cache/t_compile/91c4852bbf0ab9d68a26a0a5d3411137ee5758f8^7cf1cd52b8ba8108de77f197078de34b733dd394_0.app.frontendobjectsarticle_summary.tpl.php:161 Stack trace: #0 /home/u216976409/domains/srikandikreatif.my.id/public_html/ojs/lib/pkp/lib/vendor/smarty/smarty/libs/sysplugins/smarty_template_resource_base.php(123): content_66595f915643e0_19703657() #1 /home/u216976409/domains/srikandikreatif.my.id/public_html/ojs/lib/pkp/lib/vendor/smarty/smarty/libs/sysplugins/smarty_template_compiled.php(114): Smarty_Template_Resource_Base->getRenderedTemplateCode() #2 /home/u216976409/domains/srikandikreatif.my.id/public_html/ojs/lib/pkp/lib/vendor/smarty/smarty/libs/sysplugins/smarty_internal_template.php(217): Smarty_Template_Compiled->render() #3 /home/u216976409/domains/srikandikreatif.my.id/public_html/ojs/lib/pkp/lib/vendor/smarty/smarty/libs/sysplugins/smarty_internal_template.php(386): Smarty_Internal_Template->render() #4 /home/u216976409/domains/srikandikreatif.my.id/public_html/ojs/cache/t_compile/91c4852bbf0ab9d68a26a0a5d3411137ee5758f8^756a7119cb48731a8fd45c250b45f4bcca2d6b01_0.app.frontendpagessearch.tpl.php(173): Smarty_Internal_Template->_subTemplateRender() #5 /home/u216976409/domains/srikandikreatif.my.id/public_html/ojs/lib/pkp/lib/vendor/smarty/smarty/libs/sysplugins/smarty_template_resource_base.php(123): content_66595f8d968474_26464443() #6 /home/u216976409/domains/srikandikreatif.my.id/public_html/ojs/lib/pkp/lib/vendor/smarty/smarty/libs/sysplugins/smarty_template_compiled.php(114): Smarty_Template_Resource_Base->getRenderedTemplateCode() #7 /home/u216976409/domains/srikandikreatif.my.id/public_html/ojs/lib/pkp/lib/vendor/smarty/smarty/libs/sysplugins/smarty_internal_template.php(217): Smarty_Template_Compiled->render() #8 /home/u216976409/domains/srikandikreatif.my.id/public_html/ojs/lib/pkp/lib/vendor/smarty/smarty/libs/sysplugins/smarty_internal_templatebase.php(238): Smarty_Internal_Template->render() #9 /home/u216976409/domains/srikandikreatif.my.id/public_html/ojs/lib/pkp/lib/vendor/smarty/smarty/libs/sysplugins/smarty_internal_templatebase.php(134): Smarty_Internal_TemplateBase->_execute() #10 /home/u216976409/domains/srikandikreatif.my.id/public_html/ojs/lib/pkp/classes/template/PKPTemplateManager.php(1368): Smarty_Internal_TemplateBase->display() #11 /home/u216976409/domains/srikandikreatif.my.id/public_html/ojs/pages/search/SearchHandler.php(187): PKP\template\PKPTemplateManager->display() #12 /home/u216976409/domains/srikandikreatif.my.id/public_html/ojs/pages/search/SearchHandler.php(53): APP\pages\search\SearchHandler->search() #13 [internal function]: APP\pages\search\SearchHandler->index() #14 /home/u216976409/domains/srikandikreatif.my.id/public_html/ojs/lib/pkp/classes/core/PKPRouter.php(334): call_user_func() #15 /home/u216976409/domains/srikandikreatif.my.id/public_html/ojs/lib/pkp/classes/core/PKPPageRouter.php(277): PKP\core\PKPRouter->_authorizeInitializeAndCallRequest() #16 /home/u216976409/domains/srikandikreatif.my.id/public_html/ojs/lib/pkp/classes/core/Dispatcher.php(165): PKP\core\PKPPageRouter->route() #17 /home/u216976409/domains/srikandikreatif.my.id/public_html/ojs/lib/pkp/classes/core/PKPApplication.php(388): PKP\core\Dispatcher->dispatch() #18 /home/u216976409/domains/srikandikreatif.my.id/public_html/ojs/index.php(21): PKP\core\PKPApplication->execute() #19 {main} thrown in /home/u216976409/domains/srikandikreatif.my.id/public_html/ojs/cache/t_compile/91c4852bbf0ab9d68a26a0a5d3411137ee5758f8^7cf1cd52b8ba8108de77f197078de34b733dd394_0.app.frontendobjectsarticle_summary.tpl.php on line 161