changed var name

app.py

@@ -60,7 +60,7 @@ file = st.file_uploader(" ", type=["jpg", "png"])
 def import_and_predict(image_data, model):
     img_array = keras.preprocessing.image.img_to_array(image_data)
     img_array = np.expand_dims(img_array, axis=0)
-    img_array = img_arr/255
+    img_array = img_array/255
 
     predictions = model.predict(img_array)
     return predictions