Update app.py

app.py

@@ -13,7 +13,7 @@ sentence_embed = pd.read_csv('Reference_file.csv')
 
 # Define the backend function
 def mapping_code(user_input):
-    emb1 = model.encode(user_input.lower())
+    emb1 = model.encode(str(user_input).lower())
     similarities = []
     for sentence in sentence_embed['embeds']:
         similarity = util.cos_sim(sentence, emb1)