Fatal error: Uncaught Error: Using $this when not in object context in D:\Server\Apache24\htdocs\zentaopms\tmp\backup\20250205104613820_6.code\extension\ipd\task\ext\view\view.gantt.html.hook.php:1 Stack trace: #0 {main} thrown in D:\Server\Apache24\htdocs\zentaopms\tmp\backup\20250205104613820_6.code\extension\ipd\task\ext\view\view.gantt.html.hook.php on line 1