Update main.py

main.py

@@ -20,7 +20,7 @@ class PlantChatbot:
         self.device = "cuda" if torch.cuda.is_available() else "cpu"
         
         self.embedding_model = SentenceTransformer(
-            model_name_or_path="all-mpnet-base-v2",
+            model_name_or_path="sentence-transformers/all-mpnet-base-v2",
             device=self.device
         )