Update app.py

app.py

@@ -132,7 +132,17 @@ if st.session_state.pdf_loaded and not st.session_state.chunked:
 
 # Step 4: Setup Vectorstore 
 def load_vector_store():
-    return Chroma(persist_directory=VECTOR_DB_PATH, collection_name="deepseek_collection", embedding_function=HuggingFaceEmbeddings(model_name="nomic-ai/modernbert-embed-base"))
+    try:
+        vector_store = Chroma(
+            persist_directory=VECTOR_DB_PATH,
+            collection_name="deepseek_collection",
+            embedding_function=HuggingFaceEmbeddings(model_name="nomic-ai/modernbert-embed-base")
+        )
+        st.success("✅ Vector store loaded successfully!")
+        return vector_store
+    except Exception as e:
+        st.error(f"❌ Failed to load vector store: {e}")
+        return None  # Return None if there's an error
 
 if st.session_state.chunked and not st.session_state.vector_created:
     with st.spinner("Creating vector store..."):