Fatal error: Uncaught TypeError: PKP\i18n\Locale::getMetadata(): Argument #1 ($locale) must be of type string, null given, called in /www/wwwroot/jurnal/ojs3.4/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Support/Facades/Facade.php on line 338 and defined in /www/wwwroot/jurnal/ojs3.4/lib/pkp/classes/i18n/Locale.php:207 Stack trace: #0 /www/wwwroot/jurnal/ojs3.4/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Support/Facades/Facade.php(338): PKP\i18n\Locale->getMetadata() #1 /www/wwwroot/jurnal/ojs3.4/classes/issue/IssueGalley.php(89): Illuminate\Support\Facades\Facade::__callStatic() #2 /www/wwwroot/jurnal/ojs3.4/cache/t_compile/e26d2de610226743d9feff244fb14ef53700227f^9190456890661656c2db668fc3c363ee4354c517_0.app.frontendobjectsgalley_link.tpl.php(77): APP\issue\IssueGalley->getGalleyLabel() #3 /www/wwwroot/jurnal/ojs3.4/lib/pkp/lib/vendor/smarty/smarty/libs/sysplugins/smarty_template_resource_base.php(123): content_6889fa66210af9_54604167() #4 /www/wwwroot/jurnal/ojs3.4/lib/pkp/lib/vendor/smarty/smarty/libs/sysplugins/smarty_template_compiled.php(114): Smarty_Template_Resource_Base->getRenderedTemplateCode() #5 /www/wwwroot/jurnal/ojs3.4/lib/pkp/lib/vendor/smarty/smarty/libs/sysplugins/smarty_internal_template.php(217): Smarty_Template_Compiled->render() #6 /www/wwwroot/jurnal/ojs3.4/lib/pkp/lib/vendor/smarty/smarty/libs/sysplugins/smarty_internal_template.php(386): Smarty_Internal_Template->render() #7 /www/wwwroot/jurnal/ojs3.4/cache/t_compile/e26d2de610226743d9feff244fb14ef53700227f^26de9c47ced54328a8eb56e39bb4d4079aa049c6_0.app.frontendobjectsissue_toc.tpl.php(147): Smarty_Internal_Template->_subTemplateRender() #8 /www/wwwroot/jurnal/ojs3.4/lib/pkp/lib/vendor/smarty/smarty/libs/sysplugins/smarty_template_resource_base.php(123): content_6889fa66034d06_16303770() #9 /www/wwwroot/jurnal/ojs3.4/lib/pkp/lib/vendor/smarty/smarty/libs/sysplugins/smarty_template_compiled.php(114): Smarty_Template_Resource_Base->getRenderedTemplateCode() #10 /www/wwwroot/jurnal/ojs3.4/lib/pkp/lib/vendor/smarty/smarty/libs/sysplugins/smarty_internal_template.php(217): Smarty_Template_Compiled->render() #11 /www/wwwroot/jurnal/ojs3.4/lib/pkp/lib/vendor/smarty/smarty/libs/sysplugins/smarty_internal_template.php(386): Smarty_Internal_Template->render() #12 /www/wwwroot/jurnal/ojs3.4/cache/t_compile/e26d2de610226743d9feff244fb14ef53700227f^fcbc2cabc0d4dff6219d7e4b5d36c1363533cfd8_0.app.frontendpagesissue.tpl.php(51): Smarty_Internal_Template->_subTemplateRender() #13 /www/wwwroot/jurnal/ojs3.4/lib/pkp/lib/vendor/smarty/smarty/libs/sysplugins/smarty_template_resource_base.php(123): content_6889fa65d7a9e9_33176513() #14 /www/wwwroot/jurnal/ojs3.4/lib/pkp/lib/vendor/smarty/smarty/libs/sysplugins/smarty_template_compiled.php(114): Smarty_Template_Resource_Base->getRenderedTemplateCode() #15 /www/wwwroot/jurnal/ojs3.4/lib/pkp/lib/vendor/smarty/smarty/libs/sysplugins/smarty_internal_template.php(217): Smarty_Template_Compiled->render() #16 /www/wwwroot/jurnal/ojs3.4/lib/pkp/lib/vendor/smarty/smarty/libs/sysplugins/smarty_internal_templatebase.php(238): Smarty_Internal_Template->render() #17 /www/wwwroot/jurnal/ojs3.4/lib/pkp/lib/vendor/smarty/smarty/libs/sysplugins/smarty_internal_templatebase.php(134): Smarty_Internal_TemplateBase->_execute() #18 /www/wwwroot/jurnal/ojs3.4/lib/pkp/classes/template/PKPTemplateManager.php(1373): Smarty_Internal_TemplateBase->display() #19 /www/wwwroot/jurnal/ojs3.4/pages/issue/IssueHandler.php(138): PKP\template\PKPTemplateManager->display() #20 [internal function]: APP\pages\issue\IssueHandler->view() #21 /www/wwwroot/jurnal/ojs3.4/lib/pkp/classes/core/PKPRouter.php(334): call_user_func() #22 /www/wwwroot/jurnal/ojs3.4/lib/pkp/classes/core/PKPPageRouter.php(278): PKP\core\PKPRouter->_authorizeInitializeAndCallRequest() #23 /www/wwwroot/jurnal/ojs3.4/lib/pkp/classes/core/Dispatcher.php(165): PKP\core\PKPPageRouter->route() #24 /www/wwwroot/jurnal/ojs3.4/lib/pkp/classes/core/PKPApplication.php(395): PKP\core\Dispatcher->dispatch() #25 /www/wwwroot/jurnal/ojs3.4/index.php(21): PKP\core\PKPApplication->execute() #26 {main} thrown in /www/wwwroot/jurnal/ojs3.4/lib/pkp/classes/i18n/Locale.php on line 207