Fatal error: Uncaught TypeError: PKP\publication\PKPPublication::getAuthorString(): Argument #1 ($userGroups) must be of type Traversable, array given, called in /www/wwwroot/OJS3.5/cache/t_compile/f6d5ba03de4e3c9525c3da0f21cbe8962c2f9368^7cf1cd52b8ba8108de77f197078de34b733dd394_0.app.frontendobjectsarticle_summary.tpl.php on line 85 and defined in /www/wwwroot/OJS3.5/lib/pkp/classes/publication/PKPPublication.php:183 Stack trace: #0 /www/wwwroot/OJS3.5/cache/t_compile/f6d5ba03de4e3c9525c3da0f21cbe8962c2f9368^7cf1cd52b8ba8108de77f197078de34b733dd394_0.app.frontendobjectsarticle_summary.tpl.php(85): PKP\publication\PKPPublication->getAuthorString() #1 /www/wwwroot/OJS3.5/lib/pkp/lib/vendor/smarty/smarty/libs/sysplugins/smarty_template_resource_base.php(123): content_6ab1966e2646f5_17049034() #2 /www/wwwroot/OJS3.5/lib/pkp/lib/vendor/smarty/smarty/libs/sysplugins/smarty_template_compiled.php(114): Smarty_Template_Resource_Base->getRenderedTemplateCode() #3 /www/wwwroot/OJS3.5/lib/pkp/lib/vendor/smarty/smarty/libs/sysplugins/smarty_internal_template.php(217): Smarty_Template_Compiled->render() #4 /www/wwwroot/OJS3.5/lib/pkp/lib/vendor/smarty/smarty/libs/sysplugins/smarty_internal_template.php(386): Smarty_Internal_Template->render() #5 /www/wwwroot/OJS3.5/cache/t_compile/f6d5ba03de4e3c9525c3da0f21cbe8962c2f9368^26de9c47ced54328a8eb56e39bb4d4079aa049c6_0.app.frontendobjectsissue_toc.tpl.php(183): Smarty_Internal_Template->_subTemplateRender() #6 /www/wwwroot/OJS3.5/lib/pkp/lib/vendor/smarty/smarty/libs/sysplugins/smarty_template_resource_base.php(123): content_6ab1966e21d0f5_54997770() #7 /www/wwwroot/OJS3.5/lib/pkp/lib/vendor/smarty/smarty/libs/sysplugins/smarty_template_compiled.php(114): Smarty_Template_Resource_Base->getRenderedTemplateCode() #8 /www/wwwroot/OJS3.5/lib/pkp/lib/vendor/smarty/smarty/libs/sysplugins/smarty_internal_template.php(217): Smarty_Template_Compiled->render() #9 /www/wwwroot/OJS3.5/lib/pkp/lib/vendor/smarty/smarty/libs/sysplugins/smarty_internal_template.php(386): Smarty_Internal_Template->render() #10 /www/wwwroot/OJS3.5/cache/t_compile/f6d5ba03de4e3c9525c3da0f21cbe8962c2f9368^fcbc2cabc0d4dff6219d7e4b5d36c1363533cfd8_0.app.frontendpagesissue.tpl.php(51): Smarty_Internal_Template->_subTemplateRender() #11 /www/wwwroot/OJS3.5/lib/pkp/lib/vendor/smarty/smarty/libs/sysplugins/smarty_template_resource_base.php(123): content_6ab1966e1e9ac8_69860513() #12 /www/wwwroot/OJS3.5/lib/pkp/lib/vendor/smarty/smarty/libs/sysplugins/smarty_template_compiled.php(114): Smarty_Template_Resource_Base->getRenderedTemplateCode() #13 /www/wwwroot/OJS3.5/lib/pkp/lib/vendor/smarty/smarty/libs/sysplugins/smarty_internal_template.php(217): Smarty_Template_Compiled->render() #14 /www/wwwroot/OJS3.5/lib/pkp/lib/vendor/smarty/smarty/libs/sysplugins/smarty_internal_templatebase.php(238): Smarty_Internal_Template->render() #15 /www/wwwroot/OJS3.5/lib/pkp/lib/vendor/smarty/smarty/libs/sysplugins/smarty_internal_templatebase.php(134): Smarty_Internal_TemplateBase->_execute() #16 /www/wwwroot/OJS3.5/lib/pkp/classes/template/PKPTemplateManager.php(1515): Smarty_Internal_TemplateBase->display() #17 /www/wwwroot/OJS3.5/pages/issue/IssueHandler.php(144): PKP\template\PKPTemplateManager->display() #18 [internal function]: APP\pages\issue\IssueHandler->view() #19 /www/wwwroot/OJS3.5/lib/pkp/classes/core/PKPRouter.php(327): call_user_func() #20 /www/wwwroot/OJS3.5/lib/pkp/classes/core/PKPPageRouter.php(249): PKP\core\PKPRouter->_authorizeInitializeAndCallRequest() #21 /www/wwwroot/OJS3.5/lib/pkp/classes/core/Dispatcher.php(157): PKP\core\PKPPageRouter->route() #22 /www/wwwroot/OJS3.5/lib/pkp/classes/core/PKPApplication.php(429): PKP\core\Dispatcher->dispatch() #23 /www/wwwroot/OJS3.5/index.php(21): PKP\core\PKPApplication->execute() #24 {main} thrown in /www/wwwroot/OJS3.5/lib/pkp/classes/publication/PKPPublication.php on line 183