added error handling

app.py

@@ -168,8 +168,12 @@ For more information on `huggingface_hub` Inference API support, please check th
 # client = InferenceClient("HuggingFaceH4/zephyr-7b-beta")
 
 def predict(message, history, min_hist_memo = 3):
-    # streamer = chain(message)
-    streamer = chain.invoke({"name":message, "format_instructions":format_instructions})
+    streamer = None
+    while streamer == None:
+        try:
+            streamer = chain.invoke({"name":message, "format_instructions":format_instructions})
+        except:
+            pass
     yield str(streamer)
 
 gr.ChatInterface(predict, title="Mistral 7B").queue().launch(debug=True)