Fatal error: Uncaught TypeError: count(): Argument #1 ($value) must be of type Countable|array, null given in /var/www/html/cache/t_compile/8fa6277281f85adcebf78373382e953faa64360c^addd65021fadf964339ab08cd1aa93ba59b14e9c_0.app.frontendobjectsarticle_details.tpl.php:297 Stack trace: #0 /var/www/html/lib/pkp/lib/vendor/smarty/smarty/libs/sysplugins/smarty_template_resource_base.php(123): content_6994e2a9af27b1_02943733() #1 /var/www/html/lib/pkp/lib/vendor/smarty/smarty/libs/sysplugins/smarty_template_compiled.php(114): Smarty_Template_Resource_Base->getRenderedTemplateCode() #2 /var/www/html/lib/pkp/lib/vendor/smarty/smarty/libs/sysplugins/smarty_internal_template.php(217): Smarty_Template_Compiled->render() #3 /var/www/html/lib/pkp/lib/vendor/smarty/smarty/libs/sysplugins/smarty_internal_template.php(386): Smarty_Internal_Template->render() #4 /var/www/html/cache/t_compile/8fa6277281f85adcebf78373382e953faa64360c^1c372c95cd85572e0fbc9a53d0323a0b229cfc78_0.app.frontendpagesarticle.tpl.php(42): Smarty_Internal_Template->_subTemplateRender() #5 /var/www/html/lib/pkp/lib/vendor/smarty/smarty/libs/sysplugins/smarty_template_resource_base.php(123): content_6994e2a99e7042_06999709() #6 /var/www/html/lib/pkp/lib/vendor/smarty/smarty/libs/sysplugins/smarty_template_compiled.php(114): Smarty_Template_Resource_Base->getRenderedTemplateCode() #7 /var/www/html/lib/pkp/lib/vendor/smarty/smarty/libs/sysplugins/smarty_internal_template.php(217): Smarty_Template_Compiled->render() #8 /var/www/html/lib/pkp/lib/vendor/smarty/smarty/libs/sysplugins/smarty_internal_templatebase.php(238): Smarty_Internal_Template->render() #9 /var/www/html/lib/pkp/lib/vendor/smarty/smarty/libs/sysplugins/smarty_internal_templatebase.php(134): Smarty_Internal_TemplateBase->_execute() #10 /var/www/html/lib/pkp/classes/template/PKPTemplateManager.php(1373): Smarty_Internal_TemplateBase->display() #11 /var/www/html/pages/article/ArticleHandler.php(355): PKP\template\PKPTemplateManager->display() #12 [internal function]: APP\pages\article\ArticleHandler->view() #13 /var/www/html/lib/pkp/classes/core/PKPRouter.php(334): call_user_func() #14 /var/www/html/lib/pkp/classes/core/PKPPageRouter.php(278): PKP\core\PKPRouter->_authorizeInitializeAndCallRequest() #15 /var/www/html/lib/pkp/classes/core/Dispatcher.php(165): PKP\core\PKPPageRouter->route() #16 /var/www/html/lib/pkp/classes/core/PKPApplication.php(395): PKP\core\Dispatcher->dispatch() #17 /var/www/html/index.php(21): PKP\core\PKPApplication->execute() #18 {main} thrown in /var/www/html/cache/t_compile/8fa6277281f85adcebf78373382e953faa64360c^addd65021fadf964339ab08cd1aa93ba59b14e9c_0.app.frontendobjectsarticle_details.tpl.php on line 297