Update app.py

app.py

@@ -351,11 +351,14 @@ def generate(text, history, rag_option, model_option,  k=3, top_p=0.6, temperatu
                 "options": {"max_new_tokens": max_new_tokens},
             }
             response= requests.post(API_URL, headers=HEADERS, json=data)
-            result = response.json()
-            print("result:------------------")
-            chatbot_response = result[0]['generated_text']
-            print("anzahl tokens gesamt antwort:------------------")
-            print (len(chatbot_response.split()))
+            if response != None:
+                result = response.json()
+                print("result:------------------")
+                chatbot_response = result[0]['generated_text']
+                print("anzahl tokens gesamt antwort:------------------")
+                print (len(chatbot_response.split()))
+            else:
+                chatbot_response = "Weiß ich nicht!"
         except Exception as e:
             raise gr.Error(e)