In this line of code:
circumference = Leibniz_object.get_circumference(max_counter)

you are passing an argument to get_circumference, which doesn’t expect any additional arguments:
def get_circumference(self):
    """Displays calculated value of the circumference of a circle."""
    return (self.value_of_pi) * (self.radius) * 2

so you would have to either add this argument to the function definition or don’t pass it to this method.
The same applies to other methods (you are also passing an argument it, while none is expected).
PS: you can post code snippets by wrapping them into three backticks ```, which makes debugging easier