"There are no scenes inside that module" -manim

I am new to manim. I have been rendering a few examples of basic shapes and it has been working fine. Today the same code throws me the "There are no scenes inside that module" error. What might the problem be?

Heres is code to make a square that has been working just fine.

from manim import *class SquareMaking(Scene):    def construct(self):        square = Square(side_length=2, color=BLUE)        self.play(Create(square))        self.wait(1)        # Change Start and End Angles (Creating an arc)        square.set_start_angle(-PI/4)        square.set_end_angle(PI/2)        self.wait(1)