Week 1 exercise 1 :The added layer must be an instance of class Layer

I need help.
The error shown
The added layer must be an instance of class Layer. Found: <class 'tensorflow.python.keras.layers.advanced_activations.ReLU'>

and I looked through discourse found that input_shape matters
tfl.ZeroPadding2D(padding=(3,3), input_shape=(64,64,3)),
I added but still having error

You should use tfl.Flatten() instead of tfl.Flatten in the layer list, the same to other layers as well, like tfl.Relu() instead of tfl.Relu

Thank you very much. Solved