added try and except

app.py

@@ -102,7 +102,7 @@ with gr.Blocks() as iface:
     with gr.Row():
         question_input = gr.Textbox(label="Enter your Question", lines=2)
         dropdown_input = gr.Dropdown(
-            ["LLaMA 3.3", "Mistral 7B"], 
+            ["LLaMA 3.3", "Mistral 7B","Deepseek 70b"], 
             value="LLaMA 3.3", 
             label="Select a Model"
         )