Notice: Undefined variable: app in D:\Server\Apache24\htdocs\zentaopms\module\message\view\header.html.php on line 1

Fatal error: Uncaught Error: Call to a member function getModuleRoot() on null in D:\Server\Apache24\htdocs\zentaopms\module\message\view\header.html.php:1 Stack trace: #0 D:\Server\Apache24\htdocs\zentaopms\module\message\view\browser.html.php(13): include() #1 {main} thrown in D:\Server\Apache24\htdocs\zentaopms\module\message\view\header.html.php on line 1