Update app.py

app.py

@@ -95,7 +95,7 @@ if task1=="Sentiment Classification":
 
      
      if clss_model=="Backpropagation":
-          with open('backprop_model.pkl','rb') as model_file:
+          with open('bp_model.pkl','rb') as model_file:
                bp_model=pickle.load(model_file)
           with open('backrpop_tokeniser.pkl','rb') as model_file:
                bp_tokeniser=pickle.load(model_file)