Update app.py

app.py

@@ -134,7 +134,7 @@ def process_documents(files, chunk_size, chunk_overlap, embedding_model):
     # Create vector store
     try:
         # Reset ChromaDB client to avoid tenant issues
-        client = chromadb.PersistentClient(path=P Persistent_DIRECTORY)
+        client = chromadb.PersistentClient(path=PERSIST_DIRECTORY)
         client.reset()
         vector_store = Chroma.from_documents(
             documents=doc_splits,