Fatal error: Uncaught Error: Call to a member function getDependent() on null in /app01/services/deployment/httpd/pro_omp/lib/pkp/classes/template/PKPTemplateManager.php:2482 Stack trace: #0 /app01/services/deployment/httpd/pro_omp/cache/t_compile/4838d1eb315c43da6fc0c608df23899f50941f69^1a43403fc96a795020edfbc1cc6004aa859621c9_0.app.frontendobjectsmonograph_full.tpl.php(340): PKP\template\PKPTemplateManager->smartyPluckFiles() #1 /app01/services/deployment/httpd/pro_omp/lib/pkp/lib/vendor/smarty/smarty/libs/sysplugins/smarty_template_resource_base.php(123): content_68eefee69e2cc4_45482134() #2 /app01/services/deployment/httpd/pro_omp/lib/pkp/lib/vendor/smarty/smarty/libs/sysplugins/smarty_template_compiled.php(114): Smarty_Template_Resource_Base->getRenderedTemplateCode() #3 /app01/services/deployment/httpd/pro_omp/lib/pkp/lib/vendor/smarty/smarty/libs/sysplugins/smarty_internal_template.php(217): Smarty_Template_Compiled->render() #4 /app01/services/deployment/httpd/pro_omp/lib/pkp/lib/vendor/smarty/smarty/libs/sysplugins/smarty_internal_template.php(386): Smarty_Internal_Template->render() #5 /app01/services/deployment/httpd/pro_omp/cache/t_compile/4838d1eb315c43da6fc0c608df23899f50941f69^fad89cb5a0797f0c714bbc0b3dbced067d74491e_0.app.frontendpagesbook.tpl.php(42): Smarty_Internal_Template->_subTemplateRender() #6 /app01/services/deployment/httpd/pro_omp/lib/pkp/lib/vendor/smarty/smarty/libs/sysplugins/smarty_template_resource_base.php(123): content_68eefee691f022_86620288() #7 /app01/services/deployment/httpd/pro_omp/lib/pkp/lib/vendor/smarty/smarty/libs/sysplugins/smarty_template_compiled.php(114): Smarty_Template_Resource_Base->getRenderedTemplateCode() #8 /app01/services/deployment/httpd/pro_omp/lib/pkp/lib/vendor/smarty/smarty/libs/sysplugins/smarty_internal_template.php(217): Smarty_Template_Compiled->render() #9 /app01/services/deployment/httpd/pro_omp/lib/pkp/lib/vendor/smarty/smarty/libs/sysplugins/smarty_internal_templatebase.php(238): Smarty_Internal_Template->render() #10 /app01/services/deployment/httpd/pro_omp/lib/pkp/lib/vendor/smarty/smarty/libs/sysplugins/smarty_internal_templatebase.php(134): Smarty_Internal_TemplateBase->_execute() #11 /app01/services/deployment/httpd/pro_omp/lib/pkp/classes/template/PKPTemplateManager.php(1505): Smarty_Internal_TemplateBase->display() #12 /app01/services/deployment/httpd/pro_omp/pages/catalog/CatalogBookHandler.php(309): PKP\template\PKPTemplateManager->display() #13 [internal function]: APP\pages\catalog\CatalogBookHandler->book() #14 /app01/services/deployment/httpd/pro_omp/lib/pkp/classes/core/PKPRouter.php(327): call_user_func() #15 /app01/services/deployment/httpd/pro_omp/lib/pkp/classes/core/PKPPageRouter.php(249): PKP\core\PKPRouter->_authorizeInitializeAndCallRequest() #16 /app01/services/deployment/httpd/pro_omp/lib/pkp/classes/core/Dispatcher.php(157): PKP\core\PKPPageRouter->route() #17 /app01/services/deployment/httpd/pro_omp/lib/pkp/classes/core/PKPApplication.php(426): PKP\core\Dispatcher->dispatch() #18 /app01/services/deployment/httpd/pro_omp/index.php(21): PKP\core\PKPApplication->execute() #19 {main} thrown in /app01/services/deployment/httpd/pro_omp/lib/pkp/classes/template/PKPTemplateManager.php on line 2482