Update app.py

app.py

@@ -248,6 +248,7 @@ def process_data_files():
         print(f"ERROR accessing data folder: {e}")
         
     return context_data
+    
 def create_vectorstore(data):
     """
     Creates and returns a Chroma vector store populated with the provided data.
@@ -278,7 +279,8 @@ def create_vectorstore(data):
     except Exception as e:
         print(f"❌ Failed to add documents to vector store: {e}")
 
-    return vs
+    # Fix: Return vectorstore instead of vs
+    return vectorstore  # Changed from 'return vs' to 'return vectorstore'
 
 
 def create_rag_chain():