Update app.py

app.py

@@ -19,7 +19,8 @@ def load_fn(models):
     global default_models
     models_load = {}
     num_models = len(models)
-    default_models = models[:num_models]
+    if num_models!=0:
+        default_models = models[:num_models]
     for model in models:
         if model not in models_load.keys():
             try: