Fatal error: Uncaught Error: Using $this when not in object context in D:\Server\Apache24\htdocs\zentaopms\tmp\backup\20250213110740520_6.code\module\message\ext\model\hook\send.xuanxuan.php:2 Stack trace: #0 {main} thrown in D:\Server\Apache24\htdocs\zentaopms\tmp\backup\20250213110740520_6.code\module\message\ext\model\hook\send.xuanxuan.php on line 2