Fatal error: Uncaught Error: Class 'Illuminate\Database\Eloquent\Model' not found in G:\projects\beta.api.edutalk.edu.vn\app\Models\TicketClassroomArrangement.php:17 Stack trace: #0 {main} thrown in G:\projects\beta.api.edutalk.edu.vn\app\Models\TicketClassroomArrangement.php on line 17