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