Correct answer isn't recognised - Learn SQL by Building a Student Database: Part 1

Hi. I am having an issue with a lesson in the course. I know I have got the right answer but it is saying “Your script should have the suggested variable added correctly.” I ended up copy-pasting the answer from the hint (which was exactly the same) and it still doesn’t work. Am I missing something very obvious? I have attached an image of my screen for comparison.

thanks,

Anton

Hey, did you get through this stopper! I need help in this module in below challenge.