File "C:\Users\user\Envs\mython\lib\site-packages\django\core\handlers\
base.py", line 113, in _get_response
response = wrapped_callback(request, *callback_args, **callback_kwargs)
TypeError: product_view() missing 1 required positional argument: 'product_slug'
[15/Sep/2019 21:15:55] "GET /product/ HTTP/1.1" 500 65257