diff --git a/redis_check_uuid_mistral.py b/redis_check_uuid_mistral.py
index 8d864e8..babee0a 100644
--- a/redis_check_uuid_mistral.py
+++ b/redis_check_uuid_mistral.py
@@ -33,6 +33,7 @@ redis_ = redis.Redis(connection_pool=pool, decode_responses=True)
 
 db_key_query = 'query'
 db_key_querying = 'querying'
+db_key_error = 'error'
 
 @app.route("/search", methods=["POST"])
 def handle_query():
@@ -47,6 +48,9 @@ def handle_query():
         code = result_dict["status_code"]
         texts = result_dict["texts"]
         probabilities = result_dict["probabilities"]
+        if str(code) == 400:
+            redis_.rpush(db_key_error, json.dumps({"id": id_}))
+            return False
         result_text = {'code': code, 'text': texts, 'probabilities': probabilities}
     else:
         querying_list = list(redis_.smembers("querying"))
@@ -85,4 +89,4 @@ def handle_query():
 
 
 if __name__ == "__main__":
-    app.run(debug=False, host='0.0.0.0', port=14003)
+    app.run(debug=False, host='0.0.0.0', port=14005)