Fatal error: Uncaught Error: Call to a member function getUsername() on null in /home/sangiaor/public_html/journals/classes/user/form/ChangePasswordForm.inc.php:29 Stack trace: #0 /home/sangiaor/public_html/journals/pages/user/ProfileHandler.inc.php(91): ChangePasswordForm->ChangePasswordForm() #1 /home/sangiaor/public_html/journals/lib/pkp/classes/core/PKPRouter.inc.php(362): ProfileHandler->changePassword(Array, Object(Request)) #2 /home/sangiaor/public_html/journals/lib/pkp/classes/core/PKPPageRouter.inc.php(225): PKPRouter->_authorizeInitializeAndCallRequest(Array, Object(Request), Array, false) #3 /home/sangiaor/public_html/journals/lib/pkp/classes/core/Dispatcher.inc.php(134): PKPPageRouter->route(Object(Request)) #4 /home/sangiaor/public_html/journals/lib/pkp/classes/core/PKPApplication.inc.php(186): Dispatcher->dispatch(Object(Request)) #5 /home/sangiaor/public_html/journals/index.php(64): PKPApplication->execute() #6 {main} thrown in /home/sangiaor/public_html/journals/classes/user/form/ChangePasswordForm.inc.php on line 29