Update app.py

app.py

@@ -161,6 +161,10 @@ if query:
 
     context_relevancy_checker_prompt = PromptTemplate(input_variables=["retriever_query","context"],template=relevancy_prompt)
 
+    if "context_relevancy_evaluation_chain" in st.session_state:
+        del st.session_state["context_relevancy_evaluation_chain"]
+
+
     context_relevancy_evaluation_chain = LLMChain(llm=llm_judge, prompt=context_relevancy_checker_prompt, output_key="relevancy_response")
 
     st.write("🚀 Debugging Expected Keys for `context_relevancy_evaluation_chain`:")