Fatal error: Uncaught Error: Call to a member function find_html() on bool in /home/judi/webapps/app-judi/plugins/generic/ojtControlPanel/modules/gScholar/GScholarPlugin.php:79 Stack trace: #0 /home/judi/webapps/app-judi/lib/pkp/lib/vendor/elcobvg/laravel-opcache/src/Repository.php(25): APP\plugins\generic\ojtControlPanel\modules\gScholar\GScholarPlugin->APP\plugins\generic\ojtControlPanel\modules\gScholar\{closure}() #1 /home/judi/webapps/app-judi/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Cache/CacheManager.php(419): ElcoBvg\Opcache\Repository->remember() #2 /home/judi/webapps/app-judi/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Support/Facades/Facade.php(338): Illuminate\Cache\CacheManager->__call() #3 /home/judi/webapps/app-judi/plugins/generic/ojtControlPanel/modules/gScholar/GScholarPlugin.php(121): Illuminate\Support\Facades\Facade::__callStatic() #4 /home/judi/webapps/app-judi/plugins/generic/ojtControlPanel/modules/gScholar/GScholarPlugin.php(58): APP\plugins\generic\ojtControlPanel\modules\gScholar\GScholarPlugin->fetchGoogleScholarData() #5 /home/judi/webapps/app-judi/plugins/generic/ojtControlPanel/modules/gScholar/GScholarPlugin.php(49): APP\plugins\generic\ojtControlPanel\modules\gScholar\GScholarPlugin->getCitationData() #6 [internal function]: APP\plugins\generic\ojtControlPanel\modules\gScholar\GScholarPlugin->handleArticleDetails() #7 /home/judi/webapps/app-judi/lib/pkp/classes/plugins/Hook.php(139): call_user_func_array() #8 /home/judi/webapps/app-judi/lib/pkp/classes/plugins/Hook.php(113): PKP\plugins\Hook::run() #9 /home/judi/webapps/app-judi/lib/pkp/classes/template/PKPTemplateManager.php(1785): PKP\plugins\Hook::call() #10 /home/judi/webapps/app-judi/cache/t_compile/2bfa9ce82cf36b7c7703e7f7ad104d610225907a^f5500b4da730779e84733c94a260cc9a6d6b778b_0.plugins-1-plugins-themes-themeSeventeen-themes-themeSeventeen.frontendobjectsarticle_details.tpl.php(324): PKP\template\PKPTemplateManager->smartyCallHook() #11 /home/judi/webapps/app-judi/lib/pkp/lib/vendor/smarty/smarty/libs/sysplugins/smarty_template_resource_base.php(123): content_67f4bdd4e387d2_42644966() #12 /home/judi/webapps/app-judi/lib/pkp/lib/vendor/smarty/smarty/libs/sysplugins/smarty_template_compiled.php(114): Smarty_Template_Resource_Base->getRenderedTemplateCode() #13 /home/judi/webapps/app-judi/lib/pkp/lib/vendor/smarty/smarty/libs/sysplugins/smarty_internal_template.php(217): Smarty_Template_Compiled->render() #14 /home/judi/webapps/app-judi/lib/pkp/lib/vendor/smarty/smarty/libs/sysplugins/smarty_internal_template.php(386): Smarty_Internal_Template->render() #15 /home/judi/webapps/app-judi/cache/t_compile/2bfa9ce82cf36b7c7703e7f7ad104d610225907a^1c372c95cd85572e0fbc9a53d0323a0b229cfc78_0.app.frontendpagesarticle.tpl.php(50): Smarty_Internal_Template->_subTemplateRender() #16 /home/judi/webapps/app-judi/lib/pkp/lib/vendor/smarty/smarty/libs/sysplugins/smarty_template_resource_base.php(123): content_67f4bdd4db1f45_58846925() #17 /home/judi/webapps/app-judi/lib/pkp/lib/vendor/smarty/smarty/libs/sysplugins/smarty_template_compiled.php(114): Smarty_Template_Resource_Base->getRenderedTemplateCode() #18 /home/judi/webapps/app-judi/lib/pkp/lib/vendor/smarty/smarty/libs/sysplugins/smarty_internal_template.php(217): Smarty_Template_Compiled->render() #19 /home/judi/webapps/app-judi/lib/pkp/lib/vendor/smarty/smarty/libs/sysplugins/smarty_internal_templatebase.php(238): Smarty_Internal_Template->render() #20 /home/judi/webapps/app-judi/lib/pkp/lib/vendor/smarty/smarty/libs/sysplugins/smarty_internal_templatebase.php(134): Smarty_Internal_TemplateBase->_execute() #21 /home/judi/webapps/app-judi/lib/pkp/classes/template/PKPTemplateManager.php(1370): Smarty_Internal_TemplateBase->display() #22 /home/judi/webapps/app-judi/pages/article/ArticleHandler.php(366): PKP\template\PKPTemplateManager->display() #23 [internal function]: APP\pages\article\ArticleHandler->view() #24 /home/judi/webapps/app-judi/lib/pkp/classes/core/PKPRouter.php(334): call_user_func() #25 /home/judi/webapps/app-judi/lib/pkp/classes/core/PKPPageRouter.php(278): PKP\core\PKPRouter->_authorizeInitializeAndCallRequest() #26 /home/judi/webapps/app-judi/lib/pkp/classes/core/Dispatcher.php(165): PKP\core\PKPPageRouter->route() #27 /home/judi/webapps/app-judi/lib/pkp/classes/core/PKPApplication.php(395): PKP\core\Dispatcher->dispatch() #28 /home/judi/webapps/app-judi/index.php(21): PKP\core\PKPApplication->execute() #29 {main} thrown in /home/judi/webapps/app-judi/plugins/generic/ojtControlPanel/modules/gScholar/GScholarPlugin.php on line 79