try to catch the error exception of openai API

app.py

@@ -16,8 +16,17 @@ def chatbot(text):
     # Extract the generated response and return it
     return completion.choices[0].message.content
 
+
+def ask_gpt(prompt):
+    try:
+        completion = openai.ChatCompletion.create(model="gpt-3.5-turbo", messages=[{"role": "user", "content": prompt}])
+        return completion.choices[0].message.content
+    except openai.Error as e:
+        return f"OpenAI API error: {e}"
+        
+    
 # Create the Gradio interface
-iface = gr.Interface(fn=chatbot, inputs="text", outputs="text", title="GPT-3.5 Turbo Chatbot")
+iface = gr.Interface(fn=ask_gpt, inputs="text", outputs="text", title="GPT-3.5 Turbo Chatbot")
 
 # Launch the interface
 iface.launch()