Update app.py

app.py

@@ -60,12 +60,12 @@ def load_pdf(file_path):
         with open(f"{store_name}.pkl", "rb") as f:
             VectorStore = pickle.load(f)
     else:
-        embeddings = OpenAIEmbeddings()
+        embeddings = OpenAIEmbeddings(api_key=os.environ['OPENAI_API_KEY'])
         VectorStore = FAISS.from_texts(chunks, embedding=embeddings)
         with open(f"{store_name}.pkl", "wb") as f:
             pickle.dump(VectorStore, f)
 
-    return VectorStore
+    return VectorStore   
 
 def load_chatbot():
     return load_qa_chain(llm=OpenAI(), chain_type="stuff")