Update app.py

app.py

@@ -188,7 +188,7 @@ class StudyAnalytics:
 class CRMJABot:
     def __init__(self):
         self.db = DatabaseManager()
-        self.material_generator = StudyMaterialGenerator(self.db)
+        self.material_generator = StudyMaterialGenerator(self.db.get_connection())
         self.planner = StudyPlanGenerator(self.db)
         self.coach = MotivationalCoach()
         self.analytics = StudyAnalytics(self.db.conn)