Build something that works
Hi Nii, it's hard for me to diagnose your issue without more information. However, my guess is that you haven't followed the instructions in the video exactly (perhaps you've missed a step?). Make sure you take a look at the Notes beneath the video.
If you're still having trouble, please post your issue in the Discussion section beneath the video in question (this will give me context on where you are in the course), and be sure to include the full error information as well.