Fatal error: Uncaught Error: Call to a member function getId() on string in /www/wwwroot/journal.pnm.ac.id/pages/article/ArticleHandler.inc.php:378
Stack trace:
#0 /www/wwwroot/journal.pnm.ac.id/lib/pkp/classes/core/PKPRouter.inc.php(395): ArticleHandler->downloadSuppFile(Array, Object(Request))
#1 /www/wwwroot/journal.pnm.ac.id/lib/pkp/classes/core/PKPPageRouter.inc.php(246): PKPRouter->_authorizeInitializeAndCallRequest(Array, Object(Request), Array, false)
#2 /www/wwwroot/journal.pnm.ac.id/lib/pkp/classes/core/Dispatcher.inc.php(144): PKPPageRouter->route(Object(Request))
#3 /www/wwwroot/journal.pnm.ac.id/lib/pkp/classes/core/PKPApplication.inc.php(362): Dispatcher->dispatch(Object(Request))
#4 /www/wwwroot/journal.pnm.ac.id/index.php(68): PKPApplication->execute()
#5 {main}
thrown in /www/wwwroot/journal.pnm.ac.id/pages/article/ArticleHandler.inc.php on line 378