Update app.py

app.py

@@ -39,11 +39,15 @@ def generate(prompt, history, temperature=0.9, max_new_tokens=2048, top_p=0.95,
 def load_database():
     try:
         with open("database.json", "r", encoding="utf-8") as f:
-            return json.load(f)
-    except (FileNotFoundError, json.JSONDecodeError):
-        print("Error loading database: File not found or invalid format. Creating an empty database.")
+            data = json.load(f)
+            if not isinstance(data, list):
+                raise ValueError("Invalid data format")
+            return data
+    except (FileNotFoundError, json.JSONDecodeError, ValueError):
+        print("Error loading database: File not found, invalid format, or empty. Creating an empty database.")
         return []
 
+
 def save_database(data):
     try:
         with open("database.json", "w", encoding="utf-8") as f: