Fatal error: Uncaught TypeError: count(): Argument #1 ($value) must be of type Countable|array, null given in /code/cache/t_compile/89d777ad47fee49321727969b42b912e77adc9cd^1c372c95cd85572e0fbc9a53d0323a0b229cfc78_0.app.frontendpagesarticle.tpl.php:285 Stack trace: #0 /code/lib/pkp/lib/vendor/smarty/smarty/libs/sysplugins/smarty_internal_runtime_inheritance.php(248): Block_11745994426ae8e0e9ea1a70_43553575->callBlock(Object(Smarty_Internal_Template)) #1 /code/lib/pkp/lib/vendor/smarty/smarty/libs/sysplugins/smarty_internal_runtime_inheritance.php(184): Smarty_Internal_Runtime_Inheritance->callBlock(Object(Block_11745994426ae8e0e9ea1a70_43553575), Object(Smarty_Internal_Template)) #2 /code/lib/pkp/lib/vendor/smarty/smarty/libs/sysplugins/smarty_internal_runtime_inheritance.php(186): Smarty_Internal_Runtime_Inheritance->process(Object(Smarty_Internal_Template), Object(Block_11745994426ae8e0e9ea1a70_43553575), Object(Block_17438179216ae8e0e9ee4f34_72838923)) #3 /code/lib/pkp/lib/vendor/smarty/smarty/libs/sysplugins/smarty_internal_runtime_inheritance.php(156): Smarty_Internal_Runtime_Inheritance->process(Object(Smarty_Internal_Template), Object(Block_17438179216ae8e0e9ee4f34_72838923)) #4 /code/cache/t_compile/89d777ad47fee49321727969b42b912e77adc9cd^15c487ccc560d3e644028bb47f590d9c20d5d6b1_0.app.frontendlayoutsgeneral.tpl.php(157): Smarty_Internal_Runtime_Inheritance->instanceBlock(Object(Smarty_Internal_Template), 'Block_174381792...', 'pageContent') #5 /code/lib/pkp/lib/vendor/smarty/smarty/libs/sysplugins/smarty_template_resource_base.php(123): content_6ae8e0e9ee73c1_85553246(Object(Smarty_Internal_Template)) #6 /code/lib/pkp/lib/vendor/smarty/smarty/libs/sysplugins/smarty_template_compiled.php(114): Smarty_Template_Resource_Base->getRenderedTemplateCode(Object(Smarty_Internal_Template)) #7 /code/lib/pkp/lib/vendor/smarty/smarty/libs/sysplugins/smarty_internal_template.php(217): Smarty_Template_Compiled->render(Object(Smarty_Internal_Template)) #8 /code/lib/pkp/lib/vendor/smarty/smarty/libs/sysplugins/smarty_internal_template.php(386): Smarty_Internal_Template->render() #9 /code/lib/pkp/lib/vendor/smarty/smarty/libs/sysplugins/smarty_internal_runtime_inheritance.php(116): Smarty_Internal_Template->_subTemplateRender('frontend/layout...', NULL, '89d777ad47fee49...', 0, 3600, Array, 2, false, NULL, NULL) #10 /code/cache/t_compile/89d777ad47fee49321727969b42b912e77adc9cd^1c372c95cd85572e0fbc9a53d0323a0b229cfc78_0.app.frontendpagesarticle.tpl.php(37): Smarty_Internal_Runtime_Inheritance->endChild(Object(Smarty_Internal_Template), 'frontend/layout...') #11 /code/lib/pkp/lib/vendor/smarty/smarty/libs/sysplugins/smarty_template_resource_base.php(123): content_6ae8e0e9eca905_82415785(Object(Smarty_Internal_Template)) #12 /code/lib/pkp/lib/vendor/smarty/smarty/libs/sysplugins/smarty_template_compiled.php(114): Smarty_Template_Resource_Base->getRenderedTemplateCode(Object(Smarty_Internal_Template)) #13 /code/lib/pkp/lib/vendor/smarty/smarty/libs/sysplugins/smarty_internal_template.php(217): Smarty_Template_Compiled->render(Object(Smarty_Internal_Template)) #14 /code/lib/pkp/lib/vendor/smarty/smarty/libs/sysplugins/smarty_internal_templatebase.php(238): Smarty_Internal_Template->render(false, 1) #15 /code/lib/pkp/lib/vendor/smarty/smarty/libs/sysplugins/smarty_internal_templatebase.php(134): Smarty_Internal_TemplateBase->_execute(Object(Smarty_Internal_Template), NULL, '89d777ad47fee49...', NULL, 1) #16 /code/lib/pkp/classes/template/PKPTemplateManager.inc.php(1250): Smarty_Internal_TemplateBase->display('frontend/pages/...', NULL, '89d777ad47fee49...', NULL) #17 /code/pages/article/ArticleHandler.inc.php(320): PKPTemplateManager->display('frontend/pages/...') #18 /code/lib/pkp/classes/core/PKPRouter.inc.php(397): ArticleHandler->view(Array, Object(Request)) #19 /code/lib/pkp/classes/core/PKPPageRouter.inc.php(246): PKPRouter->_authorizeInitializeAndCallRequest(Array, Object(Request), Array, false) #20 /code/lib/pkp/classes/core/Dispatcher.inc.php(144): PKPPageRouter->route(Object(Request)) #21 /code/lib/pkp/classes/core/PKPApplication.inc.php(360): Dispatcher->dispatch(Object(Request)) #22 /code/index.php(68): PKPApplication->execute() #23 {main} thrown in /code/cache/t_compile/89d777ad47fee49321727969b42b912e77adc9cd^1c372c95cd85572e0fbc9a53d0323a0b229cfc78_0.app.frontendpagesarticle.tpl.php on line 285