Update app.py

app.py

@@ -68,7 +68,7 @@ def process_upload(files):
     #     enable_hybrid=True,
     #     batch_size=20,
     # )
-    collection_name = ["paper"]
+    collection_name = "paper"
     client = qdrant_client.QdrantClient(
         path="./qdrant_db",  
         prefer_grpc=True